Shure UHF Rechargeable Wireless Lapel Tie-Clip Mic System Head Mic

This is a professional quality wireless Clip Microphone with  frequency range 600MHz to 700MHz range. This wireless microphone system is suitable for public speaking and singing, it can also be used on public address systems, Guitar, trumpet, saxophone. Also can be used on Video Camera. It comes with a rechargeable receiver and a body pack transmitter that has volume control. - Frequency Response: Extremely low distortion - Fully Eliminate the interference signal - High receptive antenna, Beautiful and practical - Battery signal - It comes with a rechargeable receiver, body pack transmitter, tie-clip Mic, charger cable, battery and owners manual. 

A wireless microphone, or cordless microphone, is a microphone without a physical cable connecting it directly to the sound recording or amplifying equipment with which it is associated. Also known as a radio microphone, it has a small, battery-powered radio transmitter in the microphone body, which transmits the audio signal from the microphone by radio waves to a nearby receiver unit, which recovers the audio. The other audio equipment is connected to the receiver unit by cable. In one type the transmitter is contained within the handheld microphone body. In another type the transmitter is contained within a separate unit called a “bodypack”, usually clipped to the user's belt or concealed under his clothes. The bodypack is connected by wire to a "lavalier microphone" or "lav" (a small microphone clipped to the user's lapel), a headset or earset microphone, or another wired microphone. Most bodypack designs also support a wired instrument connection (e.g., to a guitar). Wireless microphones are widely used in the entertainment industry, television broadcasting, and public speaking to allow public speakers, interviewers, performers, and entertainers to move about freely while using a microphone without requiring a cable attached to the microphone.