Switch the lights off
You can switch the indicator lights off if you do not want them to be shown, for example,
during a call.
When the headset is connected to a device, press and hold the call key and the volume
down key for 5 seconds. The yellow indicator light flashes once. Some indication lights
may still be shown, for example, when the battery charge is low.
Switch the lights back on
Press and hold the call key and the volume up key for 5 seconds. The green indicator
light flashes once.