FHS Behind-The-Head Fire Safety Industrial Headset is a universal design Rugged Radio offering with compatibility to almost any brand or fire intercom with optional coil-cords. The dual 5-pin quick-disconnect feature enables coil cord connection from either side of the body. For clear transmissions, a DNC microphone and Clear Hear speakers are integrated. The behind-the-head design increases comfort, and a waterproof cover on the PTT can be found on the ear dome of the select model. Other features include a mic on/off button on the ear dome of the select model, stainless steel band, noise-cancelling hybrid EM56 microphone, and a rugged full flex mic boom. Coil cords compatible with David Clark, Avcomm, Sigtronics, Rugged, and Firecom are also offered.