Feature: 1. [High Quality]‑The U94 PTT part uses high strength PTT, which can be pressed continuously for 30,000 to 50,000 times. Imported 32Ω±15% at 1kHz speaker with big and deep sound. 2. [PU Wire and PPT]‑The wire is made of cold resistant PU tensile wire with high flexibility and toughness. The button activates the PTT (Push to Talk) device, which can be hung on clothes or belts. 3. [Multi Purpose]‑The U94 PTT headset system adapter is suitable for half helmets and full helmets. Applicable scenarios include jungle, field battle, outdoor riding, etc. 4. [Adjustable Design]‑Bracket type throat vibration noise reduction earphones, ergonomic design, coil size can be adjusted, and the size can be adjusted according to the adaptation of the neck. 5. [Noise Cancelling]-The throat vibrates to produce sound, and it has a high degree of sound insulation even when used in a very noisy and harsh environment. The surrounding noise will not be heard. How to Use: Plug and play. Specification: Item Type: U94 PTT Headset System Adapter Material: PU+PTT Colour: Black Application: Suitable for Xiaomi 1S/2S walkie talkies Speaker Specifications: Sound Pressure Level: 108±3dB at 1kHz 1mW Rated Power: 50mW Maximum Power: 100mW Speaker Impedance: 32Ω±15% at 1kHz Microphone Specifications Sensitivity: -31±5dB at 1kHz 0dB=1V/0.316G Output Impedance: 1200Ω±15% at 1kHz Package List: 1 x U94 PTT 1 x Telescopic Throat Vibration Microphone 1 x Earplug 1 x Microphone Cable