The TROOPER II is an upgraded and weatherized version of the TROOPER series speaker microphone, the best-selling PRYME speaker microphone product of all time. The TROOPER II is better sealed to prevent dust and moisture from entering the microphone. The Trooper is a heavy-duty speaker microphone with a high impact resistant, rubber sealed housing. The speaker microphone head has a large PTT button that is easy to activate with gloves on. Every aspect of the Trooper features heavy-duty construction practices. Polyurethane jacketed microphone cable with ample strain relief and an impact resistant, rubber sealed, polycarbonate housing, prepare the Trooper for a long product lifespan, of heavy-duty use, in wet environments. The Trooper has a large Push-To-Talk switch, on the side speaker microphone, that extends over the top and can be easily activated while wearing gloves. The Trooper has a spring loaded metal reinforced clothing clip that can rotate a full 360 allowing the user to wear the Trooper securely with most types of uniforms. The Trooper has a high quality electret condenser-style microphone element that transmits clearly. The Trooper also has a powerful speaker that provides ample sound. Radio Compatibility: GP1280, 140, 320, 328, 329, 338, 339, 340, 360, 380, 640, 650, 680, HT1250, HT1250LS, HT1550, HT1550XLS, HT750, MTX8250, MTX8250LS, MTX850, MTX850LS, MTX9250, MTX950, MTX960, PR860, PRO5150, PRO5350, PRO5450, PRO5550, PRO5750, PRO7150, PRO7350, PRO7450, PRO7550, PRO7750, PRO9150, PTX700, PTX760, and PTX780.