See also:

Screw thread
Push out the cover by pressing on the top edge. Front Rear ...

Radio
FM AM Weather Band Satellite radio Stored stations ...

Switching the microphone to mute
When a call is active, the microphone can be muted. 1. "Telephone". 2. "Active calls". 3. "Microphone mute" A microphone that has been switched to mute is automa ...