Shure ADX2FD/B87A=-G57 ADX FD HH 470-616 MHZ

Axient Digital frequency diversity handheld transmitter fitted with the Beta 87A supercardioid condenser vocal capsule. Transmits on two discrete RF carriers at once so a compatible receiver can maintain seamless audio if one frequency is compromised, with an optional 50 mW High Power single-frequency mode. Includes ShowLink remote control, encryption, and tuning up to 184 MHz. Up to 6.5 hours of dual-carrier runtime on an SB920A rechargeable battery. G57 band, 470 to 616 MHz.