
Quick Guide
HD 450BT
SEBT4
Instruction manuals and product support
Use the app to configure the headphones and additional functions.
Smart Control
> Download the free Sennheiser Smart Control app.

Package includes

Charging the headphones

Switching the headphones on/off

Activating/deactivating the voice assistant

Active Noise Cancellation ANC ON/OFF
Using the active noise cancellation ANC

Pairing and connecting to a Bluetooth device

Emparelhar e ligar a um dispositivo Bluetooth

Using the audio cable (flight mode)

Folding and storing

Music functions

*Call functions

Adjusting the volume

*Refer to the user manual for the complete functions list.
www.sennheiser.com
Smart Control
www.sennheiser.com/download
www.sennheiser.com/smartcontrol
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 Sennheiser electronic GmbH &
Co. KG is under license.
Sennheiser electronic GmbH & Co. KG
Am Labor 1, 30900 Wedemark, Germany
www.sennheiser.com, Publ. 10/19,
587116/A02, 770-00236



















