Lectronsonics belt worn mute switch for servo-bias transmitter, with cable. 

Inline "no-pop" audio mute switch for all Lectrosonics transmtiters with 5-pin input jacks.

The Mute switch is an active device that is powered by any 5 pin Lectrosonics transmitter including the new Servo Input transmitters such as the LMa, UM400a, and SMv series.  The Mute switch can be used for sporting events outdoors because of its convenient weather resistant package. The housing and belt-clip are machined aluminum, powder coated and laser engraved for ruggedness and legibility. The toggle switch is conveniently sized and can easily be controlled under garments. The reversible belt clip allows it to be adjusted to the user’s preference.

NOTE: DOES NOT WORK WITH MM400 OR WM MODELS