Complete wireless in-ear monitoring system from Shure’s PSM300 series, operating in the L19 frequency band (630–654 MHz). It includes the P3T transmitter, the P3RA premium metal bodypack receiver, and SE215CL sound-isolating earphones. The system features 24-bit digital audio processing, infrared sync, MixMode functionality, and a frequency scanner. It supports mono and stereo modes, has a frequency response of 38 Hz to 15 kHz, and offers up to 7 hours of battery life with AA batteries or the optional SB900A rechargeable battery.