... PTT, 3.Beige color Transparent acoustic tube earpiece Surveillance kits 3 wire with barrel PTT, microphone, earpiece ... acoustic tube earpiece 1, Transparent acoustic tube style surveillance earphone received superior sound even in noisy environment, ... cables and excellent strain relief for maximum life6, Designed for surveillance, security, public safety, etc7, Compatiable for Motorola, Kenood, HYT ...