AOER Universal 3.5mm Plug Throat Mic Air Tube Covert Earpiece Headset For Mobile Phone Specifically designed for you to keep away from phone radiation. 8-pin, Multi-pin, PTT button, 1 spare earbud includedBuilt-in push to talk button,make you easily answer the phone without even touching your phone. 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. 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.