The Shure P3T Wireless Transmitter is housed in a rugged all-metal chassis for both entry-level and professional-tier PSM®300 systems. Dependable wireless transmission and 24-bit digital audio combine to deliver a superior personal monitoring mix for every performance. Send 2 channels of audio to a bodypack receiver up to 300 feet (90 m) away, with patented Audio Reference Companding to ensure transparent sound quality with no artifacts or dropouts. When purchasing separate wireless components, please match their frequency bands to ensure proper system operation.