System includes SP-746 Waterproof Microphone and AQUA Pouch. Scan16, the next step in Ansr Audio's 16 frequency line brings professional features together with dependability and ease of use to deliver a system that's equally comfortable at entry level or operating along side larger install systems. Built-in recharging system eliminates battery cost - simply connect the transmitter to the receiver with the supplied cable. The sixteen UHF frequencies span three television channels (49,50,51) to provide the installer maximum flexibility of operation. AutoScan channel selection lets this system easily fit in to most any install environment.