Single-Wire Surveillance Mic Kit for Motorola Mototrbo Digital Radios XPR6100 XPR6350 XPR6550 XPR7550 APX4000 APX6000 APX7000 DP3400 S47 Professional Series Kevlar Reinforced PU cable, Heavy Duty Design Quick Disconnect earphone adapter for easy upgrade Single Wire acoustic tube for left or right ear compatibility Clothing clip assembly: 360 rotation (6) Skeleton Ear inserts included (small, medium and large) left and right for easy fitting.