Current list of frequently asked questions (FAQ)
Visit the MOMENTUM Wireless product page at
There you will find a current list of frequently asked questions (FAQ) and suggested solutions.
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 Sennheiser partner for assistance.
To find a Sennheiser partner in your country, search at
www.sennheiser.com > “Service & Support”.
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 “Device (1) disconnected”. At this point, the connection breaks down completely. If you immediately re-enter the Bluetooth transmission range, the connection is automatically re-established.
1.Switch the headphones on (> Switching the headphones on).
2.Press and hold the voice assistant button for 5 seconds.
The headphones are in Bluetooth pairing mode. The LED flashes blue and red.
3.Press and hold the voice assistant button again for 5 seconds.
The Bluetooth pairing list is deleted. You hear the voice prompt “Pairing list cleared”. The LED flashes blue 3x. The headphones then stay in Bluetooth pairing mode.
If the function of the headphones is disturbed, perform a restart:
1.Switch the headphones on (> Switching the headphones on).
2.Press and hold the volume + button for approx. 25 seconds.
3.Switch the headphones off and on again.
The headphones are restarted.