Multifrequency microphone system, with UHF PLL technology. 1 pocket transmitter, 1 tie clip microphone, 1 receiver, 1 plug-in PSU. True diversity system. 100 selectable UHF channels (672.000-696.975 MHz). ACT function for transmitting selected frequency to the pocket transmitter via infrared signal. Autoscan feature. Volume and squelch controls. Gain can be adjusted at the pocket transmitter. Indication for channel, antenna A/B, ACT status and AF audio level (receiver), channel and battery status (pocket transmitter). Robust metal housing (receiver)