The Audio-Technica ATW-601/G Freeway Instrument UHF Wireless System gives you super frequency flexibility with ten selectable UHF channels, available in 2 frequency bands (TV 14-15 and TV 16-17). Super Hi-Z input provides optimum load for guitar pickups. Advanced dipole antenna system and adjustable squelch control with a removable docking power supply that inserts into receiver back. 4- to five-hour battery life on 3.2 oz. transmitter.