Mute or unmute the microphone on your earphones in the Beats app for Android
On your Beats Fit Pro or Powerbeats Pro earphones, you can choose to press the multifunction button (MFB) once or twice to mute or unmute your microphone during a phone call.
In the Beats app for Android, tap , then tap My Beats to display the device screen.
Scroll down, tap Mute & Unmute, then select an action:
Press Once: Mutes or unmutes the microphone when you press the MFB once.
Press Twice: Mutes or unmutes the microphone when you press the MFB twice.