Audio-Technica Wireless Microphones and Transmitters (ATW1311) Digital 24-bit/48 kHz wireless operation for ultimate sound quality and dependable performance Operates in the 2.4 GHz range  completely free from TV interference Receiver units can be docked in the chassis or mounted remotely (up to 328 feet away) via Ethernet cable for added versatility Up to five chassis (ten receiver units) can be linked and used simultaneously Each receiver unit can be paired with up to 10 transmitters, allowing users to instantly switch between different transmitter configurations