Impact MC3-P3W-3.5 Platinum Undercover 3-Wire Surveillance Kit Earpiece for MA Com P + Unity Two Way Radios with silent barrel push-to-talk (PTT) and 3.5mm jack. Hide in plain sight with our new Ghost 3 wire Surveillance Kit Earpiece. The bad guys will think you're just jamming to your tunes when really you’re on the job and staying connected. Simply plug in any standard 3.5mm stereo headset to receive audio. The high quality sensitive mic with lapel pin can be concealed inside the collar. Features a barrel style high impact "no click" PTT with clip for the ultimate covert application. Equipped with Anchored Kevlar reinforced cable, high quality Knowles brand MEMS surface mount mic, “No Click” barrel style PTT, 3.5mm female receive only jack (headset not included), and a 3 YEAR WARRANTY. Compatible with M/A Com P5300 Series P5400 Series P5500 Series P7300 Series UNITY XG-75 and XG-25 two way handheld walkie radios.