PSSO WISE bodypack transmitter for wireless microphone systems, using a PLL multifrequency UHF transmitter operating from 638 to 668 MHz. It provides switchable RF output power of 10, 30, or 50 mW, adjustable gain from -32 to +4 dB, FM modulation, and a 50–18,000 Hz frequency response. The unit features a multicolor LCD display, menu navigation, mute and lock functions, and connects to a microphone through a 3-pin Mini XLR input. It operates for ranges up to 60 m line-of-sight and requires two AA batteries.