The Audio-Technica ATW-601/L Freeway Lavalier UHF Wireless System features super frequency flexibility with ten selectable UHF channels, available in two 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. Four- to five-hour battery life on 3.2 oz. transmitter. Includes ATW-R600 receiver, ATW-T601 transmitter, and AT829cW Lavalier microphone.