1. The product uses Bluetooth 5.3 chip, which is more power-saving, low-latency, and noise-free, achieving stable and high-quality audio transmission. 2. The product uses intelligent noise reduction, ultra-high sensitivity anti-noise silicon microphone, and wind noise-proof microphone cover to call quality. 3. Realize the control of basic functions of the mobile phone (answering calls,); automatically answer the call, if you don't want to answer, you can the button to reject or hang up, and then redial the last number. 4. The product uses a 350mAh rechargeable polymer lithium battery with a talk time of 250 hours and a standby time of 240 hours. The product adopts IP67 high-level waterproof design, which is not affected even in rainy and weather. 5. The product adopts a button design with a reasonable layout and clear functional areas to that the riding operation is completed quickly and safely. The product adopts a clip-on installation, which is suitable for summer helmets with thinner edges. The product comes standard with a hard microphone, which can be adjusted at , suitable for summer helmets that do not cover the ears. The product shell is made of ABS material, the is treated with rubber oil, and the internal silicone inlay structure is deeply waterproof, light-proof and . Noise reduction type: + Colour:Black Material:ABS Package Contents: 1 set of Helmet Bluetooth Headset (Accessory colors and styles are random, don't accept the specified and do not affect use) Only the above package content, other products are not included. Note: Light reflection 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.