David Clark H8595 - Single-Ear Noise Attenuating Headset (XLR4 Male)Series 8500 and 8600 Headsets connect to a variety of pro audio equipment. Headsets are designed for comfort during long periods of use, durability to stand up to rugged use in harsh environments and reliability to provide clear communication for a variety of applications. Features: 5 ft. Extended Coil Cord M 2H noise cancelling microphone ensures superior transmit clarity 4 pin Male XLR Connector One 60 ohm, 20 20kHz Earphone Element