Shure BRH441M - Flip-Up Mute Function

Shure Incorporated
6/12
Position the boom so the microphone is within 13 mm (1/2 inch) of the corner of your mouth. To avoid "popping" or
other breath noise, do not place directly in front of mouth.
The boom swivel allows the headset to be worn on either side of your face.
Flip-Up Mute Function
Swivel the boom vertically to the indented position at the headband to mute the microphone.