Sennheiser ACCENTUM Over-Ear Wireless Headphones (Black) - Manual (Page 19)

Using the headphones
ACCENTUM | 19
Switching the headphones off
▷
Press the main button for 3 seconds.
You hear a sound signal. The LED flashes red 3x. The headphones
switch off.
Make sure that Bluetooth is already activated on your Blue-
tooth 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.
1.
3s
3x