Tenq&reg; Covert Acoustic Tube Earpiece Headset for Motorola Gp328 Gp340 Gp360 Gp380 Gp640 Gp680 Gp1280 Two Way Radio TENQ Clear Acoustic Tube Covert Earpiece Earphone Headset PTT(Push To Talk) with built-in line mic microphone for Motorola GP328 GP340 GP360 GP380 GP640 GP680 GP1280 Two Way Radio Bodyguard FBI Security Door Supervisor. Clip this hands free earpiece onto your shirt and begin using your radio device to communicate discretely and easily, whether you're in security, retail, or hospitality. Ideal for demanding covert security applications where sound clarity and earpiece durability are of paramount importance. Excellent for use in police, military, nightclubs, bars, paintball, security, restaurants, hotels, bouncer, warehouses, and noisy environments.