The H20-10XL utilizes a portable battery power module providing up to 60 hours of use. Modular in design, it consists of a headset with atteched 5-foot straight cable and quick release connector, portable battery power module and a detachable coil cord with dual plugs (2P1643 stereo & PJ068) for connecting the portable battery power module to the aircraft radio or intercom. Stereo compatible