The PH-2 and PH-2R is a medium-weight dual muff mono headset with foam filled cushions offers a light feel with moderate isolation from ambient noise. Dynamic noise canceling mic is easily positioned with unique continuously adjustable ball joint. Available with 4 or 5 pin xlr connectors. The PH-3 and PH-3R5 has the same features as the PH-2 series headsets, but in stereo for the monitoring of 2 channels simultaneously. Available in 5 pin only.