The Bogen Enhancer Voice Enhancement System is a dual-channel, Infrared (IR) Wireless Microphone System designed to enhance a presenter`s voice and distribute it throughout a room. Thus, listeners sitting anywhere in the room can hear the presenter`s voice as clearly as if they were sitting at the front of the room. The Enhancer is now available with 3 standard microphones - headset, lavaliere, and body-pack. A handheld mic is available as an option.