Shure P3T-G20 Wireless Transmitter Frequency G20FEATURES Dependable wireless transmission and 24 bit digital audio combine to deliver a superior personal monitoring mix for every performance. Send 2 channels of audio to a bodypack receiver up to 300 feet (90 m) away, with patented Audio Reference Companding to ensure transparent sound quality with no artifacts or dropouts. Transmitter sends a stereo or mono mix wirelessly to performers onstage One touch IR sync on user friendly front panel controls