Wireless Microphone for digital camcorders...Experience high quality audio without the hassle of cables with Sima's Digital Wireless Microphone. The small compact bodypack clips securely to a belt or waistband. A lavalier clip easily attaches the microphone with windscreen to a shirt or sweater. Give freedom of movement to yourself or your video subject while recording everything from a business presentation to a school play. The receiver has built in shoe or tripod mount which connects directly to your camcorder for ease of use. Compact Size; Built-in antenna; Volume control; LED power indicator; 30 to 40 foot Range; 2.4 GHz Frequency; Interference Free (Transmitter/Receiver are matched); Frequency Hopping (Automatically chooses best band); Frequency response 100 -10KHz; Receiver takes 2 AAA batteries, Transmitter takes 2 AA batteries.