Shure QLXD14 Wireless Guitar System (X52: 902 to 928 MHz)The Shure QLXD14 rackmount digital wireless guitar system provides musicians with professional quality audio, and reliable RF performance. Rugged and easy to use, the system delivers an impressively low latency of 2. 9ms, so you don't experience any lag when playing in medium sized venues including concert stages, houses of worship, theaters, and clubs. The QLXD14 operates in the X52: 902 to 928 MHz band to transmit pristine 24 bit 48 kHz digital