The transmitter shall be a UHF bodypack transmitter with a fix frequency in the 710 MHz to 865 MHz band. It shall provide an on/off/mute switch, frequency selector switch, and battery status indicator. The audio bandwidth shall be 40 Hz to 20 kHz, with 0.8% typical THD at 1 kHz. A mini XLR connector shall allow interchangeable microphones to be connected. The transmitter shall operate for a minimum of 30 hours off a single AA size battery.