Two Wire Acoustic Tube Covert Bodyguard FBI Earpiece Earphone Headset PTT(Push To Talk) with built-in line mic microphone PTT for Motorola MotoTRBO Security Door Supervisor walkie talkie Radios Motorola 2 Wire Surveillance kit with Quick-Disconnect Acoustic Tube is comfortable to use. Surveillance Headset Suit for Motorola XPR 3300 3500 3300e 3500e and so on. 10 PACK INCLUDE. Excellent for use in FBI,Bodyguard,police,military,nightclubs,bars,paintball,security,restaurants,hotels,bouncer,warehouses, and noisy environments.High Quality Noise Reduction Microphone.