Williams AV PPA T46 Personal PA Bodypack Transmitter (Black & Silver)The black & silver Williams Sound PPA T46 Personal PA Bodypack Transmitter broadcasts a speakers voice or audio program on one of 17 available channels, 72 to 76 MHz, to listeners using PPA R35 8 or PPA R37 Receivers or an R1600 Speaker (each unit sold separately). The unit features flexible microphone and auxiliary input jacks, push button on off mute controls, channel lock, and selectable compression. This unit has the ability to operate in dual