The Clearcom BP300 is a Two-channel Beltpack ONLY for the DX300ES Wireless Intercom System. The DX300ES supports hands-free, two-way digital conversations with interfacing for two channels of external radio or intercom communications. Its compact design makes it highly portable and very quick to set up and operate. Ideal for today's frequencycongested markets, the DX300ES is a digital spread spectrum system that requires no frequency coordination or license for operation. Special features include two-channel operation, dedicated channel relays, battery operation, four-wire audio interfaces, and 2.4 GHz technology. With multi-channel support and relay closures the DX300ES can also support live event, remote broadcast, movie and video production applications.