The Shure BLX14R/P98H Wireless Rack-mount Instrument System combines professional-quality sound with simple setup and and up to 14 hours battery life for legendary audio performance right out of the box. The system includes BLX4R half-rack single-channel receiver, PGA98H clip-on instrument microphone with BLX1 bodypack transmitter, clip-on clamp, power supply, 2 AA batteries, and user guide.