FBI Headset for GP328 GP338 GP340 HT750 HT1250 HT1550 1.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. 2.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. 3.Excellent for use in FBI, Bodyguard, police, military, nightclubs, bars, paintball, security, restaurants, hotels, bouncer, warehouses, and noisy environments. 4.Compatible Motorola Models: GP Series: GP140, GP320, GP328, GP329, GP338, GP339, GP340, GP360, GP380, GP640, GP680, GP1280 HT Series: HT750 ,HT1250, HT1250LS, HT1550, HT1550XLS, MTX Series: MTX150, MTX450, MTX850, MTX950 ,MTX960,MTX1500, MTX4500, MTX1550, MTX4550 MTX8250, MTX8250LS, MTX9250LS PRO Series: PR860, PRO5150, PRO5350, PRO5450, PRO5550, PRO5750, PRO7150, PRO7350, PRO7450,PRO7550, PRO7750, PRO9150, PTX Series: PTX700, PTX760, PTX780