Klein Electronics Signal-K1 Professional Signal Split-Wire Surveillance Earpiece for use with Kenwood/HYT/Relm Radios, PTT Push-to-Talk Button with Built-in Microphone and Clothing Clip For use with Kenwood/HYT/Relm Radios PTT Push-to-Talk button with built-in Microphone and clothing clip Clear audio acoustic coil tube with quick disconnect Adjustable for left or right ear usage Eartip included