The Motorola Surveillance Headset with Push-To-Talk microphone is great for covert or stealth missions, allowing discreet operation of your Motorola Talkabout Two-Way Radios. A clear earpiece and coiled cord provides a snug, comfortable fit - even under a motorcycle helmet - and reduces device visibility while hunting, attending a theme park or coordinating a wedding. The 1518 Surveillance Headset delivers crisp, clear sound even in noisy places. The cord length between microphone and earpiece provides flexibility for movement. The PTT microphone can easily attach to your clothing with an accompanying clip. The Motorola Surveillance Headset with PTT Microphone is single-pronged and works with all Motorola Talkabout FRS/GMRS radios capable of using a headset. No set up is needed, just plug into your two-way radios and enjoy. The Motorola 1518 Two-Way Radio Surveillance Headsets are compatible with these radios and accessories: MHP61, MHP71, MHP81, EM, FV200, FV300, FV500, FV600, FV700, FV800, MB, MC, MH, MJ, MR, MS, MT, MU, SX500, SX700, SX800, SX900, T4800,T4900, T5000, T5300, T5400, T5500, T5600, T5700,T5800, T5900, T6200, T6300, T6400, T6500, T7100, T7200, T7400, T8500, T8550, T9500.