Bogen Communications, Inc. UDMS800BP Microphone, System, Wireless, 22V, Body-Pack 3000 Ohms, 470 MHz to 490 MHz

These UHF Wireless Microphone Systems offer users the freedom to move around while speaking. System choices consist of a 800-channel PLL-synthesized UHF Receiver with either a handheld microphone or lavaliere microphone and body-pack transmitter.