Two-position gain selector switch +6 and +12 dB
-Overload LED indication
-Low-noise signal amplifier compensates for insertion loss in coaxial cable
-Compatible with Shure Wireless Systems. Also may be used with Shure UA845 and UA844 Antenna Distribution Systems
-Integrated threaded adapter mounts easily to microphone stands or the supplied surface-mount bracket
-Shure quality, ruggedness, and reliability . . .