Throat Mic Microphone Covert Acoustic Tube Earpiece Headset With Finger PTT for Motorola GP328 GP340 GP360 GP380 GP640 GP680 GP1280 Two Way Radio Throat Mic Microphone Acoustic Tube Covert Earpiece Earphone Headset Finger PTT(Push To Talk) for Motorola GP328 GP340 GP360 GP380 GP640 GP680 GP1280 Two Way Radio Security Door Supervisor. Specifically designed for demanding tasks in paintball / airsoft setting. It is also widely used in discreet communications. Since the microphone transmits directly from your throat, it is not sensitive to the background noise. This is exceptionally ideal for usage in high ambient environment such as driving, riding motorcycles and bicycles. With the best-quality transparent acoustic tube that could hardly be detected by people around you, this is also ideal for surveillance purposes and security at airports, casinos, crowd control at conventions and concerts, and other working environment requiring discreet communications. Excellent for use in police, military, nightclubs, bars, paintball, security, restaurants, hotels, bouncer, warehouses, and noisy environments.