Sennheiser Momentum 4 Wireless Headphones Instruction Manual (+ PDF)

Contents hide

1 MOMENTUM 4 Wireless Headphones

2 Product Information: MOMENTUM 4 Wireless Headphones

2.1 Important Safety Instructions:

2.2 Product Usage Instructions:

2.3 Documents / Resources

2.3.1 References

2.4 Related Posts

MOMENTUM 4 Wireless Headphones

Product Information: MOMENTUM 4 Wireless Headphones

The MOMENTUM 4 Wireless around-ear headphones (Model: M4AEBT)
are a product of Sonova Consumer Hearing GmbH. These headphones are
equipped with Bluetooth wireless transmission technology and active
noise cancellation circuitry located on the outside of the ear
cups. The product generates permanent magnetic fields that could
cause interference with cardiac pacemakers, implanted
defibrillators (ICDs) and other implants. The headphones should
only be used in environments where Bluetooth wireless transmission
is permitted.

Important Safety Instructions:

Read the instruction manual carefully and completely before
using the product.
Always include the instruction manual when passing the product
on to third parties.
Do not use the product if it is obviously defective or makes
loud, unusual (whistling or beeping) noise.
Protect your hearing from high volume levels. Permanent hearing
damage may occur when headphones are used at high volume levels for
long periods of time.
The product generates stronger permanent magnetic fields that
could cause interference with cardiac pacemakers, implanted
defibrillators (ICDs) and other implants. Always maintain a
distance of at least 3.94/10 cm between the product component
containing the magnet and the cardiac pacemaker, implanted
defibrillator, or other implant.
Keep the product, accessories and packaging parts out of reach
of children and pets to prevent accidents. Swallowing and choking
hazard.
Do not use the product in an environment that requires your
special attention (e.g. in traffic). Especially the product’s
active noise cancellation can make ambient noise inaudible or
drastically change the perception of acoustic warning signals.
To avoid loud, unusual (whistling or beeping) noise and to
ensure proper noise cancellation, do not cover the microphone
openings of the active noise cancellation circuitry located on the
outside of the ear cups.
Use only attachments/accessories/spare parts supplied or
recommended by Sonova Consumer Hearing.
Clean the product only with a soft, dry cloth.
Only use rechargeable batteries and chargers recommended by
Sonova Consumer Hearing.
Do not leave the product/rechargeable batteries unattended
while charging.
Switch rechargeable battery-powered products off after
use.
When not using the product/rechargeable batteries for extended
periods of time, charge them regularly (about every three
months).
Avoid prolonged skin contact with the product, rechargeable
battery, charger or charging cable when connected to a power
source. These components can heat up during charging and cause skin
irritation.
Dispose of defective products with built-in rechargeable
batteries at special collection points or return them to your
specialist dealer to facilitate recycling.

Product Usage Instructions:

Charge the headphones using the recommended charger before
using them for the first time, and regularly (about every three
months) when not in use for extended periods of time.
Turn on Bluetooth on your device and pair it with the
headphones. Follow the device’s instructions for pairing.
Put on the headphones and adjust them to fit comfortably around
your ears.
To play/pause music or answer/end calls, press the middle
button on the right ear cup. To skip to the next/previous track,
press the + (next) or – (previous) button on the right ear cup. To
adjust volume, use the + (increase) or – (decrease) button on the
left ear cup.
To activate/deactivate the active noise cancellation feature,
press and hold the middle button on the left ear cup for two
seconds.
To turn off the headphones, press and hold the middle button on
the right ear cup for three seconds.
When not in use, store the headphones in a safe and dry
place.

View Fullscreen

MOMENTUM 4
Wireless around-ear headphones Model: M4AEBT
Instruction manual Use the search function, the navigation (left) or the following links: Start “Product overview” “Getting started” “Using the headphones” “FAQ/If a problem occurs …” “Specifications”
Sonova Consumer Hearing GmbH Am Labor 1 30900 Wedemark Germany www.sennheiser-hearing.com Version: 12/22 A02
MOMENTUM 4 | 1

Important safety instructions

Important safety instructions
Read this instruction manual carefully and completely before using the product.
Always include this instruction manual when passing the product on to third parties.
Do not use the product if it is obviously defective or makes loud, unusual (whistling or beeping) noise.
Only use the product in environments where Bluetooth wireless transmission is permitted.
Preventing damage to health and accidents
Protect your hearing from high volume levels. Permanent hearing damage may occur when headphones are used at high volume levels for long periods of time. Headphones of the Sennheiser brand sound exceptionally even good at low and medium volume levels.
The product generates stronger permanent magnetic fields that could cause interference with cardiac pacemakers, implanted defibrillators (ICDs) and other implants. Always maintain a distance of at least 3.94″/10 cm between the product component containing the magnet and the cardiac pacemaker, implanted defibrillator, or other implant.
Keep the product, accessories and packaging parts out of reach of children and pets to prevent accidents. Swallowing and choking hazard.
Do not use the product in an environment that requires your special attention (e.g. in traffic). Especially the product’s active noise cancellation can make ambient noise inaudible or drastically change the perception of acoustic warning signals.
Preventing damage to the product and malfunctions
Always keep the product dry and do not expose it to extreme temperatures (hairdryer, heater, extended exposure to sunlight, etc.) to avoid corrosion or deformation. The normal operating temperature is from 0 to 40 °C/32 to 104 °F.
To avoid loud, unusual (whistling or beeping) noise and to ensure proper noise cancellation, do not cover the microphone openings of the active noise cancellation circuitry located on the outside of the ear cups.
Use only attachments/accessories/spare parts supplied or recommended by Sonova Consumer Hearing.
Clean the product only with a soft, dry cloth.
Safety instructions for Lithium rechargeable batteries
WARNING If abused or misused, rechargeable batteries may leak. In extreme cases, they may even present a risk of: · explosion, · heat and fire development · smoke and/or gas development · damage to health and/or the environment

2 | MOMENTUM 4

Important safety instructions
Only use rechargeable batteries and chargers recommended by Sonova Consumer Hearing.
Do not leave the product / rechargeable batteries unattended while charging.
Only charge the product / rechargeable batteries at ambient temperatures between 10 °C and 40 °C/50 °F and 104 °F and do not charge them near easily flammable objects. Do not charge the product / rechargeable batteries in a damp environment. Make sure that the charging socket is free from moisture and contamination. Do not heat the product / rechargeable batteries above 60 °C/140 °F. Avoid exposure to sunlight and do not throw the product / rechargeable batteries into fire.
Switch rechargeable battery-powered products off after use.
When not using the product / rechargeable batteries for extended periods of time, charge them regularly (about every three months).
Avoid prolonged skin contact with the product, rechargeable battery, charger or charging cable when connected to a power source. These components can heat up during charging and cause skin irritation.
Dispose of defective products with built-in rechargeable batteries at special collection points or return them to your specialist dealer to facilitate recycling.
Notes on data collection and processing and on firmware updates This product stores individual settings such as the volume, the sound profiles and the Bluetooth connection data of paired devices. This data is required for the operation of the product and is not transferred to Sonova Consumer Hearing GmbH or companies commissioned by Sonova Consumer Hearing GmbH and is not processed. Using the “Sennheiser Smart Control” app, you can update the firmware of the product for free via an Internet connection. If the device on which the app is installed is connected to the Internet, the following data is automatically transferred to and processed by Sonova Consumer Hearing servers in order to provide and transfer suitable firmware updates: hardware identifier, hardware revision number, firmware version of the product, operating system type (Android, iOS) and version, version of the app. The data will only be used as specified and will not be stored permanently. If you do not want this data to be transferred and processed, do not connect to the Internet.
Notes on the use of headphones in damp environments Headphones are an everyday companion. When using the headphones on the go, they may be exposed to moisture. For example, rain, air humidity or even sweat may come into contact with the headphones.
MOMENTUM 4 | 3

Important safety instructions

To ensure proper, safe and long-lasting performance:
Avoid contact with moisture and always keep headphones dry. Do not use headphones in the rain/snow or in the shower. Do not use headphones in swimming pool, sauna or during other
activities with water/high air humidity (e.g. washing dishes).
Do not store headphones in airtight containers/bags together with damp objects (e.g. damp laundry) or objects that can cause condensation moisture (e.g. cold water bottles).
Never charge damp headphones. Make sure that the charging socket is free from moisture and contamination.
If your headphones have become damp or wet:
Dry headphones completely with a dry cloth. Allow headphones to dry at room temperature for at least
24 hours before using and charging them again.
Do not continue to use the product if it is obviously defective.
Intended use/Liability
These headphones have been designed as an accessory for Bluetooth compliant devices. They are intended for wireless audio communication such as music playback and phone calls via Bluetooth wireless technology.
It is considered improper use when the product is used for any application not named in the corresponding product documentation.
Sonova Consumer Hearing GmbH does not accept liability for damage arising from misuse or improper use of this product and its attachments/accessories.
Sonova Consumer Hearing GmbH is not liable for damages to USB devices that are not consistent with the USB specifications.
Sonova Consumer Hearing GmbH is not liable for damages resulting from the loss of connection due to flat or overaged rechargeable batteries or exceeding the Bluetooth transmission range.
Before putting into operation, please observe the respective country-specific regulations.

4 | MOMENTUM 4

Package contents

Package contents
MOMENTUM 4 around-ear headphones Model: M4AEBT
USB charging cable with USB-C and USB-A connector, length approx. 1.2 m
Analog audio cable with 3.5 mm jack plug and 2.5 mm jack plug, length approx. 1.2 m
In-flight adapter
Carry case
Quick guide
Safety guide
Online you can find: · this detailed instruction manual and additional information
(www.sennheiser-hearing.com/download) · the Sennheiser Smart Control app for configuring the head-
phones and for additional functions (www.sennheiser-hearing.com/smartcontrol) · a list of accessories on the MOMENTUM 4 product page at www.sennheiser-hearing.com/momentum-4-wireless (to purchase online or contact your local Sonova Consumer Hearing partner: www.sennheiser-hearing.com/service-support)

MOMENTUM 4 | 5

Product overview

Product overview
MOMENTUM 4 Model: M4AEBT

6 | MOMENTUM 4

5 2
2

3 4

R
6 7

0
9 8

Headband, steplessly adjustable
Ear cups
Multi-function button of the headphones: · On/off button · Voice assistant button · Pairing button: pressing for 5 seconds activates the
Bluetooth pairing mode
Ear pads
Marking for the right ear (R) and for the left ear (L) (inside the ear cups)
Speech microphones (4 pcs.) for phone calls
Input for analog audio cable, 2.5 mm; when a cable is connected, flight mode is activated/Bluetooth is deactivated USB-C socket for charging, calling, streaming via PC/Mac

Product overview

LED display Microphones for active noise cancellation ANC: 2x directed outward, 2x directed inward (not visible) Touch pad (outside of the right ear cup)
Overview of the smart control Switch-on of the headphones · Automatic switch-on: by lifting and putting on
Auto

· Manual switch-on: by pressing the multi-function button for 3 seconds
Manual
Hold 3s

MOMENTUM 4 | 7

Product overview

Gesture control via the touch pad · Tap

· Horizontal swipe

· Vertical swipe

· Stretch
R
· Pinch
R

8 | MOMENTUM 4

You can also deactivate the touch pad function, see: > 34.
The headphones are equipped with a sensor that automatically detects whether the headphones are worn or taken off from your ears (Smart Pause function). You can find more information here: > 33.

Product overview

Overview of the LED display

During operation

LED

Meaning/headphones…

… switch on

white

flashes 3x

… are connected to a device via Blue-

tooth

white continuous sequence

… are in Bluetooth pairing mode

red flashes 3x

… switch off

During phone calls

LED

white

flashes 3x

repeatedly

red

flashes 3x

repeatedly

Meaning Incoming call
Incoming call with an almost empty battery

During charging LED
1 red 1 white 2 white 3 white 4 white 5 white 5 white

Meaning
Rechargeable battery is almost empty (less than 2% charged)
Rechargeable battery is approx. 2-20% charged (>1 hour of playback time)
Rechargeable battery is approx. 20-40% charged (>12 hours of playback time)
Rechargeable battery is approx. 40-60% charged (>24 hours of playback time)
Rechargeable battery is approx. 60-80% charged (>36 hours of playback time)
Rechargeable battery is approx. 80-100% charged (>48 hours of playback time)
Rechargeable battery is 100% charged (up to 60 hours of playback time)

MOMENTUM 4 | 9

Product overview

If the LED display does not light up:
· Clean the charging socket (> 38).
· Charge the rechargeable battery until the LED display lights up again (at least 30 minutes) (> 14). If the rechargeable battery is completely discharged, it may take several minutes for the LED display to indicate the charging process.

10 | MOMENTUM 4

Product overview

Overview of sound signals and voice prompts The headphones output voice prompts and sound signals in case of various events.
Via the Smart Control app, you can adjust settings for the voice prompts and sound signals (> 34).

Voice prompt

Meaning/headphones…

Establishing a Bluetooth connection

“Connected”

…are connected via Bluetooth.

“No connection”

… have lost the Bluetooth connection to a paired device.

“Pairing successful”

… have successfully completed Bluetooth pairing.

“Pairing failed”

… have not successfully completed Bluetooth pairing.

Information on battery status and volume

“Recharge headset”

… has an empty rechargeable battery. Charge the rechargeable battery (> 14).

“More than xx % battery left”

… indicates the remaining battery charge in percent.

“Volume min”

… has reached the minimum volume setting.

“Volume max”

… has reached the maximum volume setting.

“Mute on”

… mutes the microphone.

“Mute off”

… activates the microphone again.

You hear short sound signals when the headphones · are switched on or off, · are put on or taken off, · are in pairing mode (melody), · detect devices in the pairing list, · cancel the pairing process, · receive a gesture via the touch pad (increasing the volume, start-
ing/pausing music playback, answering/holding/rejecting calls, adjusting the ANC function or Transparency Mode), · receive an incoming call (ring tone), · are connected to a device via the audio cable or USB cable, · are disconnected from the connection via the audio cable or USB cable.

MOMENTUM 4 | 11

Getting started

Getting started
1. Charging the rechargeable battery
The headphones’ rechargeable battery is not fully charged upon delivery. Before using the headphones for the first time, charge the
rechargeable battery for a complete charging cycle without interruption (> 14).

USB-C

USB-A

2. Connecting the headphones to a Bluetooth device
Connect the headphones to your smartphone via Bluetooth (> 15).

Hold 5s

3. Smart Control app for your smartphone
The Sennheiser Smart Control app allows you to use all functions and settings of the headphones and to e.g. adjust the sound to your liking using the equalizer (> 19).

Smart Control

“Sennheiser Smart Control”

12 | MOMENTUM 4

Getting started

4. Putting the headphones on and adjusting the headband
For good sound quality and best possible wearing comfort, the headband can be adjusted to properly fit your head (> 21).

MOMENTUM 4 | 13

Using the headphones

Using the headphones
Information on the rechargeable battery and the charging process
The headphones have a built-in rechargeable battery. A complete charging cycle takes approx. 2 hours. The charging time may vary depending on the power source used and the ambient temperature. Before using the headphones for the first time, charge the rechargeable battery for a complete charging cycle without interruption. When the headphones are being charged, the LED display lights up (>9). Once the headphones are fully charged, the LEDs flash white for approx. 5 minutes and then go off. When the battery charge drops to a low level, the voice prompt “Recharge headset” asks you to recharge the headphones. If the headphones are not charged, the voice prompt will be repeated every 10 minutes until the headphones switch off. Sonova Consumer Hearing recommends using the supplied USB cable and a compatible standard USB power supply for charging the headphones. While the headphones are being charged, you can still listen to music or make phone calls. In this case, however, the charging time may be longer. At the end of its operational lifetime, this product with its built-in rechargeable battery must be disposed of separately from normal household waste. You can find more information here: > 43.
Charging the headphones’ rechargeable battery

R
1.

USB-C

2.
USB-A

1. Make sure that the charging socket is free from moisture and contamination. Connect the USB-C connector of the charging cable to the USB socket of the headphones.

14 | MOMENTUM 4

Using the headphones

2. Connect the USB-A connector to a corresponding socket of a USB power source (to be ordered separately). Make sure that the USB power source is connected to the power supply system. The charging process of the headphones begins. The LED display indicates the charge status.

LED 1 red 1 white 2 white 3 white 4 white 5 white 5 white

If the LED display does not light up:
Clean the charging socket (> 38). Charge the rechargeable battery until the LED display lights up
again (at least 30 minutes) (> 14). If the rechargeable battery is completely discharged, it may take several minutes for the LED display to indicate the charging process.
You can speed up the charging process by charging the headphones when they are switched off.

If you disconnect the USB connection during or after charging, you will hear a voice prompt informing you of the remaining battery life.

Connecting the headphones to a Bluetooth device
To be able to use the Bluetooth connection, you must register both devices (headphones and e.g. smartphone) once. This process is called pairing.
If operation differs from the steps mentioned, also refer to the instruction manual of the Bluetooth device you are using.
If you switch on the headphones for the first time (the pairing list is empty), they automatically switch to pairing mode.

MOMENTUM 4 | 15

Using the headphones

Information on the Bluetooth wireless connection
The headphones are compliant with Bluetooth 5.2. If your audio source supports one of the following high-resolution audio encoding methods, music is automatically played in high audio quality: aptXTM Adaptive (aptXTM, aptXTM Low Latency) or AAC. Otherwise the headphones will play your music in normal audio quality (SBC). Paired devices establish the Bluetooth wireless connection immediately after switch-on and are ready for use. On switch-on, the headphones automatically try to connect to the last two connected Bluetooth devices. The headphones can save the connection profiles of up to six Bluetooth devices with which they have been paired. Audio playback is only possible from one device at a time. If you pair the headphones with the seventh Bluetooth device, the saved connection profile of the least used Bluetooth device will be overwritten. If you want to re-establish a connection with the overwritten Bluetooth device, you have to pair the headphones again.
1
2 6

Paired and connected Bluetooth device Paired Bluetooth device (currently not connected)

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Using the headphones

Pairing the headphones with a Bluetooth device
If you switch on the headphones for the first time (the pairing list is empty), they automatically switch to pairing mode.
1. Switch the headphones off and place them close to the Bluetooth device (max. 20 cm).
2. Press the multi-function button for 5 seconds. The headphones are switched on and you hear a sound signal. The LEDs light up white 3x. The headphones switch to pairing mode. The LEDs light up as a white continuous sequence and a melody can be heard.
3. Activate Bluetooth on your Bluetooth device.
4. Via the menu of your Bluetooth device, start the search for new Bluetooth devices. All active Bluetooth devices in the proximity of your Bluetooth device are displayed.
By default, the name of the headphones is “MOMENTUM 4”. You can individually adjust the name in the Smart Control app (> 19).
5. From the list of found Bluetooth devices, select “MOMENTUM 4”. If necessary, enter the default pin code “0000”.
6. If pairing was successful, you hear the voice prompts “Pairing successful” and “Connected” one after the other. The LED flashes white 3x.

20 cm

5s 3x

3.
ON

4.
…… ……

5.
MOMENTUM 4 ……

6.
“Pairing successful”
3x

If no connection is established within 2 minutes, pairing mode is terminated and the headphones switch to standby mode. If necessary, repeat the steps described above.

MOMENTUM 4 | 17

Using the headphones

Switching the connection to paired Bluetooth devices/”Connections”
To selectively switch the audio connection to paired Bluetooth devices using the “Connections” function, you require the Smart Control app (> 19).
In the Smart Control app, tap “Connections”. The list of Bluetooth devices paired with the headphones appears.
From the list, select the paired device to which you want to connect the headphones. Make sure that the desired device is switched on and Bluetooth is activated. The Bluetooth audio connection between the desired Bluetooth device and the headphones is established. The app connection between the device with the Smart Control app installed and the headphones remains active (only Bluetooth Low Energy for communication between app and headphones, the device name is highlighted in bold).
The “Connections” function also allows you to selectively delete pairing information of devices without resetting the headphones to the factory default settings.
Disconnecting the headphones from a Bluetooth device
Via the menu of your Bluetooth device, disconnect the connection to the headphones. The headphones are disconnected from the Bluetooth device. You hear the voice prompt “No connection”. The headphones switch to standby mode.
To delete the Bluetooth pairing list of the headphones: > 41.

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Using the headphones

Installing the Smart Control app
To make full use of all the settings and functions of the headphones, you need to have the free Sennheiser Smart Control app installed on your smartphone.
Download the app from the Apple App Store or Google Play and install it on your smartphone. Alternatively, you can use your smartphone to scan the following QR code or to call up the following Internet site:
www.sennheiser-hearing.com/smartcontrol

Connect your smartphone to the headphones via Bluetooth (> 15). Start the Smart Control app. Follow the instructions in the app.
The Smart Control app recognizes the headphones and activates all available settings and functions.
Switching the headphones on
WARNING Danger of hearing damage due to high volume levels! Listening at high volume levels can lead to permanent hearing defects. Before putting the headphones on, adjust the volume
to a low level (> 22). Do not continuously expose yourself to high volume
levels.
Automatic switch-on When the headphones are in the supplied carry case: Take out the
headphones from the carry case. One LED flashes white 3x. The headphones automatically switch on. Put on the headphones. You hear a sound signal. If Bluetooth is activated on the headphones and a paired device is available, you hear the voice prompt “Connected”. If Bluetooth is deactivated on the headphones (> 35), you only hear a sound signal. The active noise cancellation ANC may be activated (> 26).

MOMENTUM 4 | 19

Using the headphones

Manual switch-on Press the multi-function button for 3 seconds.
One LED flashes white 3x. You hear a sound signal. If Bluetooth is activated on the headphones and a paired device is available, the LED lights up white and you hear the voice prompt “Connected”. If Bluetooth is deactivated on the headphones (> 35), you only year a sound signal. The active noise cancellation may be activated (> 26).
“Connected”
Hold
3s

Make sure that Bluetooth is already activated on your Bluetooth device when switching on the headphones.
If Bluetooth is activated and the headphones cannot find a paired Bluetooth device within a few minutes, you hear the voice prompt “No connection”. The LED flashes red 3x. The headphones switch to standby mode.
Switching the headphones off
Automatic switch-off After taking off the headphones, they automatically switch off after 15 minutes. You can adjust the time span using the Smart Control app (> 19). After being placed in the supplied carry case, the headphones immediately switch off automatically.
Manual switch-off Press the multi-function button for 3 seconds.
You hear a sound signal. One LED flashes red 3x. The headphones switch off.
1.
Hold
3s

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Using the headphones

Putting the headphones on and adjusting the headband
For good sound quality, the best possible noise cancellation and the best possible wearing comfort, the headband can be adjusted to properly fit your head.
Wear the headphones so that the headband runs over the top of your head. The markings for the right side (R) and for the left side (L) can be found on the inside of the ear cups.
Move the ear cups up or down the headband slider until: your ears are comfortably covered by the ear pads, you feel even, gentle pressure around your ears, a snug fit of the headband on the head is ensured. For optimal sound quality, the ear pads must completely surround your ears.

MOMENTUM 4 | 21

Using the headphones

Retrieving information on the battery charge status
When the headphones are connected to your Bluetooth device, the battery charge status can be displayed on the screen of your smartphone (depending on the device and operating system used).
The Smart Control app also displays the battery charge status.
On the headphones, you can retrieve information on the battery charge level via the voice prompts (also possible while listening to music or talking on the phone, as long as you have the headphones on):
Press the multi-function button 2x. You hear a voice prompt informing you of the remaining battery life. Depending on the battery life of the headphones, the LEDs flash or light up.

Voice prompt
“Recharge headset”
“More than xx % battery left”

Meaning
The rechargeable battery is empty. Charge the rechargeable battery (> 14).
The remaining battery charge is displayed as a percentage.

“More than 40% battery left”
2x

22 | MOMENTUM 4

Adjusting the volume
WARNING Danger of hearing damage due to high volume levels! Listening at high volume levels can lead to permanent hearing defects. Toggling between the audio sources may cause enormous volume jumps that can permanently damage your hearing. Before putting the headphones on and before tog-
gling between audio sources, adjust the volume to a low level. Do not continuously expose yourself to high volume levels.
You can adjust the playback volume for music and for phone calls.
If you are playing music, are on a call or if the headphones are in idle mode (i.e. you are neither playing music nor are on a call): Swipe vertically up or down on the touch pad to increase or reduce the volume for music, voice prompts and sound signals.
When the maximum or minimum volume is reached, you hear the voice prompt “Volume max” or “Volume min”.

Using the headphones

Depending on the length of the swipe motion, you adjust the volume in smaller increments (short swipe motion) or larger increments (long swipe motion).
When switching the headphones off, very high volume levels are automatically reset to a moderate level to protect your hearing when you switch the headphones on again.

You can also adjust the volume using the connected Bluetooth device.
If you have activated the voice assistant (> 32) and then change the volume of the headphones, the volume of the voice assistant is adjusted accordingly and saved permanently.

MOMENTUM 4 | 23

Using the headphones

Information on active noise cancellation ANC
Due to its closed design, the headphones offer effective passive isolation from ambient noise.
In addition, the headphones have an active noise cancellation (ANC) function, which allows you to reduce ambient noise to a minimum.
Even when ANC is activated, your headphones’ sound quality is always at its best.
You can activate or deactivate ANC when the headphones are connected to your audio source via Bluetooth or via the audio cable/USB cable (provided that the battery is sufficiently charged).
If you want to create a quiet space in a noisy environment, you can simply use the headphones without connected cables and without Bluetooth devices as noise protection by using ANC (> 26).
With the Smart Control app, you can select different ANC modes that provide the optimal settings for your application/situation.
Notes on active noise cancellation
· Continuous and low-frequency noise, such as motor or fan noise, is particularly well suppressed.
· Speech or high-frequency noise is significantly reduced, but can remain perceptible.
· In very quiet environments, slight noise may occur. In this case, deactivate ANC.
· If unusual (whistling or beeping) noise occurs, take the headphones off and put them on again. Make sure that the ear cups properly fit around your ears.
· To avoid loud, unusual (whistling or beeping) noise and to ensure proper noise cancellation, do not cover the microphone openings of the active noise cancellation circuitry located on the outside of the ear cups.

24 | MOMENTUM 4

Information on the Transparency Mode Hearing ambient sounds or conversations
With the Transparency Mode activated, you can hear ambient sounds or communicate without having to remove the headphones. This allows you to hear e.g. announcements in the train or aircraft or to have short conversations.

Using the headphones

The Transparency Mode optimally complements the active noise cancellation ANC. Via the adjustable intensity of the Transparency Mode and the active noise cancellation ANC, you can determine how much ambient noise reaches your ears or whether you want to listen exclusively to your music (ANC at full intensity). If you use the Transparency Mode at full intensity, disturbing sounds, e.g. low-frequency noise such as aircraft noise, are always suppressed so that you can stay relaxed and in touch with your surroundings.
Switching between the active noise cancellation ANC and the Transparency Mode
You can use the gesture control on the touch pad to switch between the active noise cancellation ANC and the Transparency Mode, e.g. if you want to transition from ambient awareness to idle mode as quickly as possible. This function is not available during an active call, see: > 29.
To switch between the modes, tap the touch pad 2x.

The intensity of the Transparency Mode and the active noise cancellation remains incrementally adjustable (> 26).

Adjusting the playback pause in Transparency Mode
You can select the behavior of the audio playback, i.e. how it behaves at maximum intensity of the Transparency Mode (tap the touch pad 2x). To be able to adjust this setting, you require the Smart Control app (> 19).
In the Smart Control app, select the desired Transparency Mode function in the “Active Noise Cancellation” section:

“Pause on full transparency” activated*
deactivated

Description
Audio playback (e.g. music) is muted and you hear only ambient sounds. Audio playback (e.g. music) continues and is mixed with ambient sounds.

*default setting

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Using the headphones

Increasing/decreasing the active noise cancellation ANC and the Transparency Mode
To increase the active noise cancellation ANC and decrease the Transparency Mode:
On the touch pad, move your thumb and index finger towards each other. You hear a sound signal. The intensity of the ANC is increased and ambient awareness is decreased.
To increase the Transparency Mode and decrease the active noise cancellation ANC:
On the touch pad, move your thumb and index finger away from each other. You hear a sound signal. The intensity of the ambient awareness is increased and the ANC is decreased.

ANC 100 %
R

Transparency Mode 100 %
R

26 | MOMENTUM 4

You can also adjust the intensity of the active noise cancellation ANC and the Transparency Mode via a slider in the Smart Control app.

Adjusting the active noise cancellation ANC
To be able to adjust settings for the active noise cancellation ANC, you require the Smart Control app (> 19).
Select the desired setting in the “Active Noise Cancellation” section of the Smart Control app:

ANC setting

Reduction of low-frequency noise and background noise

“Adaptive”

activated*

automatic reduction depending on the noise conditions

Using the headphones

ANC setting

Reduction of low-frequency noise and background noise

deactivated No automatic reduction

“Wind Noise Reduction”

Off Wind noise reduction off

Auto*

Automatically adjusted reduction to minimize disturbing wind or movement noise

Max Maximum wind noise reduction

*default setting

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Using the headphones

Listening to music using the headphones
You can listen to music when the headphones and your audio source are connected via Bluetooth (> 15), the audio cable (> 36) or via USB (> 37).
Controlling music playback
The following music functions are only available when the headphones and the device are connected via Bluetooth or USB. Some smartphones or music players may not support all functions.
R

Tap the touch pad. Touch gesture
Tap 1x

Function Plays or pauses music

Pauses music and switches to idle

Tap 2x

mode (intensity of the Transparency

Mode remains adjustable: > 26)

If music playback does not start: · Check if the playback pause is activated in the Transpar-
ency Mode (> 25) and deactivate the function if necessary. · Start the music playback app on your Bluetooth device.

28 | MOMENTUM 4

Using the headphones

Playing the next/previous track Swipe horizontally on the touch pad.

Touch gesture

Function

Swipe forward

Plays the next track in the playlist

+Hold

Swipe forward and hold

*Fast-forwards a track

Swipe backward

Plays the previous track in the playlist

+Hold

Swipe backward and *Rewinds a track hold

* only for smartphones or music players that support this function

Making phone calls using the headphones
The following call functions are only available when the headphones, the smartphone or the PC/Mac are connected via Bluetooth (> 15). Some smartphones or communication apps may not support all functions. During a call, the active noise cancellation ANC is always activated to ensure the best possible speech intelligibility. The Transparency Mode cannot be used.
If the headphones are switched off during an active call or if the rechargeable battery is empty, the call is put on hold and you can use your smartphone as an output device as usual.
Making a call
Dial the desired number on your smartphone. If your smartphone does not automatically transfer the call to the headphones, select “MOMENTUM 4” as the output device on your smartphone (see the instruction manual of your smartphone if necessary).

MOMENTUM 4 | 29

Using the headphones

Accepting/rejecting/ending a call
If your headphones are connected to a smartphone and you receive a call, you hear a ring tone in the headphones.
If you are playing music when you receive a call, the music pauses until you end the call.

Use the touch pad:

Touch gesture
Swipe forward

Function Accepts a call
Accepts an incoming call and ends the active call

Swipe backward

Ends a call

Rejects a call

2sec

Hold for 2 seconds

Rejects an incoming call and ends

the active call

Puts an active call on hold

Accepts an incoming call and puts

Tap 2x

the active call on hold

Toggles between active call and call on hold

30 | MOMENTUM 4

Using the headphones

Muting the microphone
To mute the headphones’ microphone during a call:
Press the multi-function button 1x. You hear the voice prompt “Mute on”. The microphone is muted.
To activate the microphone again:
Press the multi-function button 1x. You hear the voice prompt “Mute off”. The microphone is reactivated.

Using the Sidetone function
When using the headphones for phone calls, you may find it more comfortable if your own voice is audible in the headphones. With the Sidetone function activated, your own voice is played back through the headphones during a phone call.
Via the Smart Control app, you can activate the function (default setting) and adjust the intensity via a slider or deactivate the function.

MOMENTUM 4 | 31

Using the headphones

Using the voice assistant/voice dialing
The voice assistant is only available when the headphones and the mobile device are connected via Bluetooth or USB. Some smartphones or music players may not support all functions. Press the multi-function button 1x.
The available voice assistant of your mobile device is activated (depending on the system used or app installed on your mobile device: Siri, Google Assistant or others. If no voice assistant is available, voice dialing may be activated). Speak your request.
R
1x

To cancel the voice assistant or voice dialing: Press the multi-function button 1x.
R
1x

32 | MOMENTUM 4

Using the headphones

Using the Smart Pause function
The headphones are equipped with a sensor that automatically detects whether the headphones are worn or taken off from your ears. You can use the following functions: · Music playback pauses when you take off the headphones and
continues when you put them on again. · A phone call is accepted when you put on the headphones. · A phone call is muted when you take off the headphones during
the call and resumed when you put the headphones back on.

Pause
Mute
If you take off the headphones and transport them or put them down when they are switched on, the sensor will not detect that the headphones have already been taken off in certain situations, e.g.:
If you place the insides of the ear cups facing down on a table. If you wear the headphones around your neck and your chin
covers the area inside the ear cups. If the insides of the ear cups are covered by objects or by your
hands. If you hang the headphones over the edge of a bag or carry them
inside a bag. If you wear the headphones over a cap, scarf, or over your hair. To avoid problems with the sensor: Store the headphones in the supplied carry case (> 37). Switch off the headphones manually when you store them outside the carry case (> 20).
You can deactivate the sensor function via the Smart Control app. The smart functions such as automatic switch-off of the headphones when placed in the carry case or muting when the headphones are taken off are then no longer available.

MOMENTUM 4 | 33

Using the headphones

Adjusting sound effects/the equalizer
To be able to use the sound effects/the equalizer, you require the Smart Control app (> 19). In the Smart Control app, select the desired sound effects via the
equalizer. You can use predefined presets, define sound modes (e.g. bass boost) or define your own settings. The sound effects are stored in the headphones. These sound settings are active even without using the Smart Control app, i.e. when you are using a different Bluetooth device.
The Sound Check function of the Smart Control app allows you to create customized equalizer presets. Sound Check guides you step by step to the optimal result.
Setting the voice prompts/sound signals
To be able to set the voice prompts and sound signals, you require the Smart Control app (> 19). In the app settings, you can activate voice prompts and sound signals (default setting) or deactivate them completely.
Deactivating the touch pad function
To avoid unintentional entries via the touch pad of the headphones, e.g. when you have put the headphones on while lying down, you can deactivate the touch pad function. To do this, use the Smart Control app (> 19).
Deactivating Bluetooth/activating flight mode
Deactivate the Bluetooth wireless connection when wireless connections are not allowed, such as on an aircraft during take-off and landing. The active noise cancellation ANC can be fully used provided that the rechargeable battery is charged (> 26). To deactivate the Bluetooth wireless connection and activate flight mode: Press the multi-function button 5x.
You hear the voice prompt “No connection”. The Bluetooth wireless connection is deactivated.
R ON/OFF
5x

34 | MOMENTUM 4

To activate the Bluetooth wireless connection again:

Using the headphones

Press the multi-function button 5x. You hear the voice prompt “Connected”. The Bluetooth wireless connection is activated.
If you connect the audio cable, the Bluetooth wireless connection is also deactivated (> 35).
If you only want to use the headphones for active noise cancellation ANC during a flight, you can deactivate the touch pad function to avoid unintentional entries (> 34).
Using the audio cable/activating flight mode
If you connect the audio cable, flight mode is activated and the Bluetooth wireless connection is deactivated. Use the audio cable when · wireless transmission is not allowed, e.g. during aircraft take-off
and landing, · the headphone’s rechargeable battery is empty, · your audio source doesn’t offer a Bluetooth connection. The functions for controlling music, phone calls or the voice assistant are not available. The active noise cancellation ANC can be fully used provided that the rechargeable battery is charged (> 26).

MOMENTUM 4 | 35

Using the headphones

Connecting the headphones using the audio cable
Connect the 2.5 mm jack plug of the audio cable to the headphones’ audio socket. Flight mode is activated and the Bluetooth wireless connection is deactivated.
Connect the 3.5 mm jack plug to the audio output of your smartphone.
To disconnect the audio cable:
Carefully disconnect the jack plug from the headphones.

OFF

2.5 mm

3.5 mm

Using the in-flight adapter
Connect the 3.5 mm jack plug of the audio cable (> 36) to the inflight adapter.
Connect the in-flight adapter to the aircraft’s in-flight entertainment system.
If the volume of the headphones is too low, first increase the volume on the in-flight entertainment system.
If you want to increase the volume on the headphones and the volume cannot be increased as usual, restart the headphones by switching them off and on again.

36 | MOMENTUM 4

Using the headphones

Connecting the headphones using the USB cable
When you connect the headphones to a Mac/PC/mobile device using the supplied USB cable, you can play audio content from your Mac/PC/mobile device directly through the headphones.
The headphones are automatically charged when you connect them to a Mac/PC/mobile device using the USB cable.
Setting up the headphones as the default audio output and audio input device for your Mac/PC/mobile device Make sure that possible Bluetooth connections are disconnected. Connect the headphones and the Mac/PC or mobile device via
the USB cable. The headphones are charged via the USB connection. From the Systems Preferences or Control Panel of your Mac/PC/ mobile device, select “MOMENTUM 4” as the default audio output device and/or default audio input device. Start music playback from the Mac/PC/mobile device. The music is played through the headphones and the microphone is used for recording.
Storing and transporting the headphones
Store the headphones in the carry case to prevent damage to the headphones when you are not using or transporting them.
If you store or transport the headphones when they are still switched on, the sensor will not detect that the headphones have already been taken off in certain situations, e.g. if you hang them over the edge of a bag or transport them inside a bag. Information on how to avoid problems with the sensor can be found here: > 33.
Fold up the headphones and place them in the carry case as shown in the illustration. The headphones automatically switch off.

MOMENTUM 4 | 37

Care and maintenance

Care and maintenance
CAUTION Liquids can damage the electronics of the product! Liquids entering the housing of the product can cause a short-circuit and damage the electronics. Keep all liquids far away from the product. Do not use any solvents or cleansing agents.
Clean the parts of the product only with a soft, dry cloth. To clean the charging socket: Blow vigorously over the charging socket. If necessary, carefully remove any stuck dirt from the charging
socket using a dry, soft brush or a dry interdental brush. Only apply gentle pressure when doing so.
Replacing the ear pads
For reasons of hygiene, you should replace your ear pads from time to time. Spare ear pads are available at www.sennheiser-hearing.com/momentum-4-wireless (to purchase online or contact your local Sonova Consumer Hearing partner: www.sennheiser-hearing.com/service-support) Peel the ear pad up and away from the ear cup. Assign the right ear pad to the right ear cup and the left ear pad
to the left ear cup. Place the new ear pad onto the ear cup. Make sure that the seam
of the ear pad points downwards. Place the ear pad around the ear cup so that the ear pad is fixed
in the notch of the ear cup.
Left L

38 | MOMENTUM 4

Care and maintenance

Information on the built-in rechargeable battery
Sonova Consumer Hearing GmbH ensures and guarantees that the rechargeable batteries perform at their optimum upon purchase of the product. If, upon purchase or within the warranty period, you suspect that a rechargeable battery is obviously defective or if a charging error/battery error is displayed (> 9), stop using the product, disconnect it from the power supply system and contact your Sonova Consumer Hearing partner. Your Sonova Consumer Hearing partner will coordinate the repair/replacement with you.
Do not return a product with a defective battery to your dealer or Sonova Consumer Hearing partner unless requested to do so. To find a partner in your country, search at www.sennheiser-hearing.com/service-support).
At the end of its operational lifetime, this product with its built-in rechargeable battery must be disposed of separately from normal household waste. You can find more information here: > 43.
Installing firmware updates
Firmware updates can be downloaded free of charge from the Internet using the Sennheiser Smart Control app. Sonova Consumer Hearing recommends to always install the latest firmware version to ensure the best performance of your product.
Connect the headphones to your smartphone and start the Smart Control app (> 19).
The app provides information on available firmware updates and guides you through the installation process.

MOMENTUM 4 | 39

FAQ/If a problem occurs …

FAQ/If a problem occurs …
If a problem has occurred, proceed in the following order until the problem is solved and you can use the headphones again:
1. Press the multi-function button for 15 seconds (reset). (> 41).
2. Connect the headphones to the Smart Control app to install the latest firmware (> 39).
3. Reset the headphones to the factory default settings (> 41).
4. Check the list of frequently asked questions to see if there is a solution to the problem (> 40).
5. Contact your Sonova Consumer Hearing partner to solve the problem (> 40).
Current list of frequently asked questions (FAQ) Visit the MOMENTUM 4 product page at www.sennheiser-hearing.com/download. There you will find a current list of frequently asked questions (FAQ) and suggested solutions.
Your question has not been answered or the problem persists? If a problem occurs that is not listed in the FAQ section or if the problem cannot be solved with the proposed solutions, please contact your Sonova Consumer Hearing partner for assistance. To find a partner in your country, search at www.sennheiser-hearing.com/service-support).
Leaving the Bluetooth transmission range Wireless calling and streaming are only possible in the Bluetooth transmission range of your smartphone. The transmission range largely depends on environmental conditions such as wall thickness, wall composition etc. With a free line of sight, the transmission range of most smartphones and Bluetooth devices is up to 10 meters. If you, and therefore the headphones, leave the Bluetooth transmission range of the smartphone, the sound quality deteriorates increasingly until you hear the voice prompt “Lost connection” and the connection breaks down completely. If you immediately re-enter the Bluetooth transmission range, the connection is automatically re-established.

40 | MOMENTUM 4

FAQ/If a problem occurs …

Resetting the headphones If the function of the headphones is disturbed, perform a reset. Individual settings such as the pairing settings are not deleted. Press the multi-function button for 20 seconds.
You hear a short confirmation sound.
R

20s

Deleting the Bluetooth pairing list of the headphones You can delete the Bluetooth pairing list using the Smart Control app. Follow the instructions in the app.
Resetting the headphones to the factory default settings To be able to reset the headphones to the factory default settings, you require the Smart Control app (> 19). Switch on the headphones (> 19) and connect them to a Bluetooth
device on which the Smart Control app is available. Select the “Factory default settings” function in the app settings. Follow the instructions in the app.

MOMENTUM 4 | 41

Specifications

Model: M4AEBT

Wearing style

Bluetooth® around-ear, closed-back

Ear coupling

circum-aural

Transducer principle

dynamic

Transducer

42 mm

Frequency response

6 Hz to 22,000 Hz (-10 dB)

Sound pressure level (SPL) 106 dB (1 kHz/0 dBFS)

THD (1 kHz, 100 dB SPL) < 0.3 % (1 kHz, 100 dB SPL)

Microphone principle

MEMS

Microphone frequency response

80 Hz to 8,000 Hz (-3 dB)

Microphone pick-up pattern (speech audio)

4 omni-directional microphones 2×2-mic beamforming array

Power supply

built-in rechargeable lithium-polymer
battery: 3.7 V , 700 mAh, 2.7 Wh USB charging: 5 V , 750 mA max.

Charging time of recharge- approx. 2 hrs able battery

Operating time

up to 60 hrs (music playback via Bluetooth with ANC activated)

Temperature range

operation: 0 °C to +40 °C charging: +10 °C to +40 °C storage: -20 °C to +60 °C

Relative humidity (non condensing)

operation: 10 to 80 % storage: 10 to 90 %

Weight (headphones)

approx. 293 g

Magnetic field strength

6.25 mT

Bluetooth

Version Transmission frequency Modulation Profiles Output power Codec Device name
Number of active connections

Bluetooth 5.2 compliant, class 1 2,402 MHz to 2,480 MHz GFSK, /4 DQPSK, 8DPSK HFP, AVRCP, A2DP 10 mW (max) aptXTM Adaptive, AAC, SBC MOMENTUM 4 (individually adjustable) LE-MOMENTUM 4 (Bluetooth Low Energy only) 2

42 | MOMENTUM 4

Manufacturer Declarations

Manufacturer Declarations
Warranty Sonova Consumer Hearing GmbH gives a warranty of 24 months on this product. For the current warranty conditions, please visit our website at www.sennheiser-hearing.com/warranty or contact your Sonova Consumer Hearing partner.
In compliance with the following requirements · General Product Safety Directive (2001/95/EC) · Compliant to Sound Pressure Limits according to country spe-
cific requirements
EU declaration of conformity · RoHS Directive (2011/65/EU) Hereby, Sonova Consumer Hearing GmbH declares that the radio equipment type M4AEBT is in compliance with the Radio Equipment Directive (2014/53/EU). The full text of the EU declaration of conformity is available at the following Internet address: www.sennheiser-hearing.com/download.
UK declaration of conformity · RoHS Directive (2012) · Radio Equipment Regulations (2017)
Notes on disposal · EU: Battery Directive (2006/66/EC & 2013/56/EU) · EU: WEEE Directive (2012/19/EU) · UK: Battery Regulations (2015) · UK: WEEE Regulations (2013) The symbol of the crossed-out wheeled bin on the product, the battery/rechargeable battery (if applicable) and/or the packaging indicates that these products must not be disposed of with normal household waste, but must be disposed of separately at the end of their operational lifetime. For packaging disposal, observe the legal regulations on waste segregation applicable in your country. Improper disposal of packaging materials can harm your health and the environment. The separate collection of waste electrical and electronic equipment, batteries/rechargeable batteries (if applicable) and packagings is used to promote the reuse and recycling and to prevent negative effects on your health and the environment, e.g. caused by potentially hazardous substances contained in these products. Recycle electrical and electronic equipment and batteries/rechargeable batteries at the end of their operational lifetime in order to make contained recyclable materials usable and to avoid littering the environment.

MOMENTUM 4 | 43

Manufacturer Declarations

If batteries/rechargeable batteries can be removed without damaging them, you are obliged to dispose of them separately (for the safe removal of batteries/rechargeable batteries, see the instruction manual of the product). Handle lithium-containing batteries/ rechargeable batteries with special care, as they pose particular risks, such as the risk of fire and/or the risk of ingestion in the case of coin batteries. Reduce the generation of battery waste as much as possible by using longer-life batteries or rechargeable batteries.
Further information on the recycling of these products can be obtained from your municipal administration, from the municipal collection points, or from your Sonova Consumer Hearing partner. You can also return electrical or electronic equipment to distributors who have a take-back obligation. Herewith you make an important contribution to the protection of the environment and public health.
Trademarks
Apple, the Apple logo and Siri are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc.
Android and Google Play are registered trademarks of Google Inc.
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Sonova Consumer Hearing GmbH is under license.
Qualcomm aptXTM is a product of Qualcomm Technologies International, Ltd. Qualcomm is a trademark of Qualcomm Incorporated, registered in the United States and other countries, used with permission.
aptXTM is a trademark of Qualcomm Technologies International, Ltd., registered in the United States and other countries, used with permission.
Other product and company names mentioned in the user documentation may be the trademarks or registered trademarks of their respective holders.

44 | MOMENTUM 4