✔️【Big PTT】Big size PTT and wearing gloves does not affect the key operation. ✔️【 Waterproof】There is a waterproof platform design at the plug, so it needs to be fully plugged with some force, otherwise it may have poor contact. ✔️【Beautiful】The headsets can be used underneath clothing to increase your profession look. ✔️【Comfortable to wear】Earbud Adopts the soft silicone, comfortable enough to forget it's there. ✔️【Audio Performance】Walkie talkie earpiece headset with good performace for both listening and talking,prevent distortion of sound– No distortion, attenuation or frequency jumps. ✔️【Compatible with Radio】Compatible with Hytera PD550 PD562 BD500 TD500 TD520 TD562 walkie talkie. The earpiece for hytera radio. Electroplating anti-oxidation coating. The durable PU cable can withstand 5-10kg. The length from plug to PTT is about 160cm;The length from PTT to pin about 108cm.. The earpieces can be used underneath clothing to increase your profession look. Ergonomically designed. Interchangeable universal acoustic tube. Mushroom earbud - comfortable for long use. Specification: Color: Black Length: Length from PTT to earpiece about 160cm;length from PTT to plug about 108cm Line Material: PU material Package Include: 1x Earpiece, 1x Silicone earbud Compatible with Hytera Radios: * BD-500, BD-550 * PD550, PD-562 * TC-500, TC-508, TC-518, TC-580, TC-600, TC-610, TC-620, TC-700, TC-700EX, TC-700ExPLUS, TC-900 TC-850, TC-1600, TC2100, TC-3000, TC-3600 * TD-500, TD-510, TD-520, TD-530, TD-550, TD-560, TD-562 Note: If your walkie talkie's brand model isn’t listed above, please to confirm the compatibility with us.