AOER Universal 3.5mm Plug Throat Mic Air Tube Covert Earpiece Headset for Mobile Phone Etc Specifically designed for you to keep away from phone radiation. Built-in push to talk button,make you easily answer the phone without even touching your phone. Designed to work with moto/bike racing helmet.With the best-quality transparent acoustic tube that could hardly be detected by people around you, this is also ideal for surveillance purposes and security at airports, casinos, crowd control at conventions and concerts, and other working environment requiring discreet communications. Noise cancelling with boom mic microphone. Dual speakers with sticker, can be pasted to inside of the helmet.The throat mic could be easily hidden under the collars too. This headset is for use with the almost phone with 3.5mm plug, as far as we know.