The Audio-Technica M3R is an more wireless receiver for the M3 in-ear wireless rig. Using the M3 system, you and other musicians onstage can control the volume and mix of two separate receivers using the M3R stereo body-pack receiver, ensuring that you hear yourself accurately. Plus, the Audio-Technica M3R wireless in-ear bodypack receiver lets you hear yourself clearly at lower volumes, saving your eardrums, and providing the quality of monitoring you need to hit the stage you best. Whether you need a backup, or just another bodypack for your M3 wireless system, expect incredible sound through your Audio-Technica M3R wireless in-ear receiver!