... :614-806MHZ wireless microphone,uhf wireless microphone,uhf microphone,Infrared wireless microphone,Dual Channel Wireless Microphone,pll Infrared wireless microphone Model: ... technology, only you put the transmitter aim to the ACT LED on the receiver, it can be automatic ... LCD display panel on transmitters and receiver show RF/AF and Channel. Rugged 1RU metal receiver chassis. Operating range up to ...