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.