David Clark Behind-The-Head Dual Muff Headset Model H6240-51 PTT button conveniently located on headset ear dome Behind-the Head, dual ear style  wear with or without hard hats or helmets Quality components and rugged construction Durable 6-foot extended coil cord terminated with radio-specific connector For use with Motorola XPR7000 & XPR6000 Series Radios