The Shure ULXD1 is a wireless bodypack transmitter compatible with ULX-D digital wireless microphone systems. With a rugged yet lightweight aluminum body, the ULXD1 delivers transparent audio quality and rock-solid RF transmission in a compact, easy-to-conceal design. Intuitive controls and menu screens combined with a high-contrast LCD make adjustments fast and easy, and IR sync rapidly relays setting changes to the receiver. Two AA alkaline batteries provide up to 11 hours of performance time, while advanced rechargeability options extend battery life and metering precision. Combined with a wide selection of legendary Shure microphones, the ULXD1 delivers professional wireless audio tailored for installed sound and rental applications.