SENNHEISER CXPLUSTW1 CX Plus True Wireless Earbuds Instruction Manual
Important safety instructions
- Read the instruction manual, safety guide, quick guide (depending on the package contents) carefully and completely before using the product.
- Always include these safety instructions when passing the product on to third rties.
- 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
Do not listen at high volume levels for long periods of time to prevent hearing damage.- Do not insert the earphones too deep into your ears and never insert them without ear adapters. Always remove the earphones slowly and carefully from your ears.
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 (earbuds and charging case) 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 °C to 40 °C/ 32 °F 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 earbuds.
- 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

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/41 °F and 95 °F and do not charge them near easily flammable objects

Do not heat the product / rechargeable batteries above 70 °C/158 °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).

This product contains coin rechargeable batteries. If you think the product / a coin rechargeable battery has been swallowed or is lodged in the body, seek medical assistance immediately.

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 and the Bluetooth addresses 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 GmbH 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 is only used for the purpose of providing and transferring the firmware updates and is not stored permanently. If you do not want this data to be transferred and processed, do not connect to the Internet.
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 the 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 the product into operation, please observe the respective countryspecific regulations.
Manufacturer Declarations
For more information on regulatory compliance markings, refer to the supplied supplement sheet
Warranty
Sonova Consumer Hearing GmbH gives a warranty of 24 months on this product.
For the current warranty conditions, please visit our web site at
www.sennheiserhea-ring.com/warranty or contact your Sonova Consumer Hearing partner
For AUSTRALIA and NEW ZEALAND ONLY
Sonova Hearing Australia Pty Ltd provides a warranty of 24 months on these products. For the current warranty conditions, visit the Sonova Consumer Hearing website: www.sennheiser-hearing.com/warranty. Sonova Consumer Hearing goods come with guarantees that cannot be excluded under Australian and New Zealand Consumer law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. This warranty is in addition to other rights or remedies under law. Nothing in this warranty excludes, limits or modifies any remedy available to the consumer which is granted by law. To make a claim under this contract, raise a case via the Sonova Consumer Hearing website: www.sennheiser-hearing.com/service-support. All expenses of claiming the warranty will be borne by the person making the claim. Sonova Consumer Hearing international warranty is provided by: Sonova Hearing Australia Pty Ltd (ABN 82651492929) The Zenith, Level 14, Tower A, 821 Pacific High, Chatswood New South Wales 2067, Australia
In compliance with the following requirements
- General Product Safety Directive (2001/95/EC)
- Compliant to Sound Pressure Limits according to country specific requirements

EU declaration of conformity
- RoHS Directive (2011/65/EU)
Hereby, Sonova Consumer Hearing GmbH declares that the radio equipment type CXPLUSTW1 (CXPLUSTW1 L, CXPLUSTW1 R, CXPLUSTW1 C) 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 Regulations (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/re chargeable batteries (if applicable) and packaging’s 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. 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 theses 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.
![]()


















