The Audio Technica PROR500 Wireless Receiver is designed for use with the Pro Series 5 wireless system. Pair with your Pro Series 5 to achieve eight selectable frequency-coordinated channels, diversity operation for increased range/reliability, automatic frequency scanning, Tone Lock squelch and more. Ideal for the traveling and gigging musician, the Pro Series 5 wireless systems deliver quality sound.This reliable receiver comes with included power supply