1. The microphone pole can be lowered to talk, and raising the microphone pole will turn off the microphone.

2. The MUTE button in the middle of the headset can be pressed briefly to turn the microphone on/off; pressing and holding the MUTE button can activate PTT communication mode. In PTT mode, pressing and holding the middle button will turn on the microphone for communication, and releasing it will automatically turn off the microphone.