AOER 3.5mm Full Face Earpiece Headset Mic Microphone For Mobile Phone Designed to work with two way radio. Specifically designed for you to keep away from phone radiation. PTT button with velcro which is convenient to use. 3.5mm Plug Full Face Earpiece Headset Mic Microphone For Phone. Designed to work with outdoor activities. Noise cancelling with boom mic microphone. Dual speakers with sticker, can be pasted to inside of the equipment.