Nady DKW-1-LT/O VHF Lavalier Omni Wireless System with DKW-1 Receiver, WLT-14 Transmitter and Lavalier Omni Mic Full frequency response from 40 to 20,000 Hz 250 feet typical operating range up to 500+ feet line-of-sight Choice of 2 transmitters - WHT-14 handheld mic with a powerful neodymium cartridge that delivers unsurpassed audio quality, low handling noise and enhanced feedback rejection. WLT-14 bodypack for lavalier or headworn mic DKW-1 mini portable receiver with unique space-saving, vertical design and power ON/OFF switch, 1/4 audio output jack, and easily visible extra-jumbo LED indicators for power on, transmitter on and audio off