KENMAX Black Universal 3.5mm Plug Throat Mic Air Tube Covert Earpiece Headset Earphone with Mic for Smartphone Telephone Mobile Phone All of our products are brand New,never been used. Sensitive throat vibration microphone - can pick up low voice Transparent flexible acoustic tube. Soft plastic earbud fits snugly to ear Clear communication in even most noisy environment Sold exclusive by KENMAX