CB99 Beltpack Transmitter for Concert 99 provides up to eight hours of operation from two AA alkaline batteries and features a Mini-XLR (P3) input, 1 MΩ input impedance, 38 dB input gain range, 10 mW EIRP RF power, a pop-free one-touch mute, and a metal belt clip. Dimensions are 96 × 62 × 18.5 mm and weight 93 g. It is offered in Band D and Band K configurations with a 300 ft line-of-sight operating range.