Usage Tips:Radiation-proof: acoustic tube protect your body by reducing radio waves radiation.Anti-noise: The Soft plastic earbud fits snugly to either left or right ear and deliver a great sound even in noisy places by acoustic tubeIt also make you a handsome or .Built-in microphone with an inline PTT(Push To Talk) button that clips on your shirt, so you can use your radio device to communicate discreetly and easily, whether you're in security, retail or hospitality.transparent acoustic tube headset that could hardly be detected by people around you(also reduces electronic radiation), perfect for surveillance purposes and security at airports, casinos, crowd control, conventions, concerts and other working environment requiring discreet communications.Compatible with for 2-Pin jack two way radio including CP040, CP140, CP160, CP180, P100, P140, P145, P160, P165, P180, P185, XT420, XT460, DTR 2430, DTR 2450, G15, G18 Banda PMR446 Radio, ARCTIC Marine VHF Transceiver, Hytera(HYT) TC-500, TC-508, TC-518, TC-518 OBR, TC-580, TC-610, TC-700, PD412, PD502, PD562.Colour: blackMaterial: plasticPackage Contents:1 x radio headsetOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.