This dual muff, full cushioned, medium weight mono headset features a noise cancelling dynamic microphone housed on a uniquely adjustable ball joint positioner. The earcups are of a closed-back design offering 21 dB of passive noise reduction. The PH2 is available with either 4-Pin Female or 5-Pin Female XLR connectors for Intercom use, or as the PH2R, which has a 4-Pin Male XLR connector for RTS applications