The Shure FP1 Wireless Bodypack Transmitter is available as part of the Shure FP series wireless microphone systems or individually. The Shure FP series provides professional, portable wireless operation in the 24MHz band, is easy to operate and affordable. The transmitter features a TA4 (4-pin) input that is compatible with Shure lavalier microphones. Its input gain control provides that right amount of input level, and infrared sync provides quick and easy channel syncing between the FP1 bodypack and FP5 receiver (sold separately). The FP1 bodypack is ruggedly built and powered on a pair of AA batteries.