Feature: 1. [Hook And Loop Fixation] 7.1mm/0.28in bilateral helmet headset, designed to be used in conjunction with motorcycle helmets, with hook and loop, easy to fix, easy to use, and very durable. 2. [Noise Reduction] With a noise reduction microphone, the sound is clearer, this motorcycle helmet headset has stereo and good sound quality characteristics. 3. [Good Performance] 46‑60dB sensitivity, 150Hz‑500Hz frequency response, plug and play, easy to use, this helmet earpiece provides great comfort for your ears. 4. [High Quality Material] High strength U94 PTT, which can be pressed continuously for 30,000 to 50,000 times, cold resistant PU tensile wire, has high flexibility and toughness. 5. [Compatible Models] Push button activation PTT (Push to Talk) device, suitable for Yaesu Vertex VX‑6R VX‑7R, with clip, which can be hung on your clothes or belt. How to Use: Plug and play. Specification: Item Type: Helmet Headset Material: ABS Color: Black Frequency Response: 150Hz-500Hz Sensitivity: 46-60dB Impedance: 8 ohm Application: Suitable for Yaesu Vertex VX-6R VX-7R Package List: 1 x Helmet Headset1 x U94 PTT