The P9RA is a compact, stereo bodypack receiver for use with the PSM®900 Wireless Personal Monitor System. It offers premium features including RF Scan and Automatic Gain Control for unparalleled RF stability and channel availability, plus an advanced rechargeability option for extended usage times, all packed in the thinnest form factor available. Patent-pending CueMode allows monitoring of different stage mixes and storing of up to 20 separate channels from one bodypack for quick and easy reference. The P9RA is compatible with all Shure SE Sound Isolating Earphones, designed specifically for use with Shure PSM systems. Please note: the SBC200 charger, SBC800-US charger, and SB900 rechargeable battery are available separately.Note: When purchasing separate wireless components, please match their frequency bands to ensure proper system operation.