PSM300 Stereo Personal Monitor Systems deliver reliable wireless freedom to every corner of the stage. Patented Audio Reference Companding ensures the clearest sound, with ultra-low noise and no artifacts. Easy to setup and operate, PSM 300 systems offer one-touch frequency scan and sync to find and assign a clean wireless channel. Adjust the volume and use MixMode technology or stereo mode to create a personal mix from two channels of audio. Features Send two channels of audio wirelessly to performers onstage 24-bit digital audio provides clear, detailed sound Patented Audio Reference Companding sounds more like wired Up to 90 dB signal-to-noise ratio Exceptionally wide stereo separation Solid analog RF connection over a 300 ft (90 m) range Create a personal mix from the bodypack with MixMode technology or stereo mode Frequency scan and IR sync quickly finds and assigns a clean channel Half-rack, single channel transmitter with included rack mount kit P3RA professional bodypack systems available with SE215 Sound Isolating Earphones WATCH: Shure Personal In-Ear Monitor System: PSM300 [EN version]