A listen-only patch cord for use with the 3M PowerCom 2-Way Radio Headset series, providing a 3.5mm stereo or mono wired-in outlet for use with portable music or entertainment devices. • Listen-only patch cord • Compatible with entire 3M PowerCom 2-Way Radio Headset series • 3.5mm wired-in stereo or mono outlet • For use with portable music or entertainment devices