Item Type: PTT Headset SystemMaterial: PU + PTTColor: BlackApplication: Suitable for Hytera PD-780 PD-785 PD-788 PD-780G PD-785G PD-788GSpeaker Specifications:Sound Pressure Level: 1083dB at 1kHz 1mWRated Power: 50mWMaximum Power: 100mWSpeaker Impedance: 3215% at 1kHzMicrophone SpecificationsSensitivity: -315dB at 1kHz 0dB=1V/0.316GOutput Impedance: 120015% at 1kHzPackage List1 x U94 PTT1 x Telescopic Throat Vibration Microphone1 x Earplugs1 x Microphone CablePlease note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.1[High Quality Material] High strength PTT, can be pressed continuously for 30,000 to 50,000 times, cold resistant PU tensile wire, high flexibility and toughness. 2[Big Speaker] Imported 3215% at 1kHz speaker, clear and deep sound, with multiple usage, suitable for jungle, field battle, outdoor riding and other scenes. 3[Portable] A button activates the PTT (Push to Talk) device, which can be hung on clothes or belts, it is sturdy and durable, suitable for half helmets and full helmets. 4[Adjustable] Bracket type throat vibration earphones, easy to shrink, coil size can be adjusted, can be adjusted according to the adaptation of the neck. 5[Noise Isolation] The throat vibrates to produce sound, even in very noisy and harsh environments, it also has a high degree of sound insulation.