The UR1 wireless bodypack transmitter, built from lightweight magnesium, offer a sweat-resistant, compact design engineered to withstand the abuses of the road. It works with headworn, lavalier, and instrument microphones and cables. Its removable antenna provides additional flexibility, and a threaded connector securely locks microphone or instrument cables. Other advanced features include a multi-function bit-mapped LCD, frequency and power lockout and infrared automatic transmitter sync. The UR1 can be used continuously for up to 8 hours using 2 x AA batteries (included).