LED power indicator & channel display; Range: up to 164ft; UHF signal system for wider range & less obstruction; Audio level indicator for wireless system audio signal level; RF signal indicator for transmitter signal strength; SET function for channel selection; Adjustable volume control; 1/4″ audio output; XLR balanced output; AC/DC adapter power jack; Power supply: 110V/220V;Receiver:; Image & spurious rejection: >70dB; Receiving sensitivity: -105dB; Signal-to-noise ratio: -105dB; Border upon channel rejection: >70dB;Body pack:; RF output: >10dBm; FM modulation; Max deviation: +/-40kHz; Spurious emissions: >55dBc; Nominal current drain: