User Manual Q&AAnswer
Mar 26, 2025 - 09:32 AM
To activate the active noise cancellation (ANC) feature on the SENNHEISER HD 450BT Wireless Over Ear Headphones, follow these steps:
1. Make sure that the headphones are switched on by pressing and holding the on/off button for 2 seconds. The LED will flash blue 3 times and you will hear the voice prompt "Power on".
2. Press the on/off button once to activate ANC. If you are using Bluetooth, the LED will flash purple 3 times. If Bluetooth is deactivated (analog audio cable is connected), the LED will light up blue.
3. ANC is now activated and will help reduce ambient noise for a more immersive listening experience.
Note: To deactivate ANC, press the on/off button once again. The LED will flash purple 3 times if using Bluetooth, or the LED will go off if Bluetooth is deactivated.
For more information and detailed instructions, please refer to the SENNHEISER HD 450BT Wireless Over Ear Headphones User Guide.
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