Feature: 1. BLUETOOTH 5.0 TECHNOLOGY: Helmet headset uses bluetooth 5.0 technology for stable transmission, wider coverage, faster speed and lower power consumption. 2. AUTOMATIC ANSWERING: Motorcycle helmet headset automatically answers incoming calls without reaching for your phone, safer and more convenient. 3. EASY TO OPERATE: Motorcycle helmet headphones are more convenient to operate, 3 keys designed on the microphone, simple music control and dialing. 4. LONG WORKING TIME: Motorcycle helmet bluetooth headset with built in 500mAh rechargeable lithium ion battery, long standby time and long working time. 5. NOISE REDUCTION: Helmet bluetooth headset has built in noise cancellation technology, presenting HD stereo sound effect and clear calls with one key. 6. SMALL AND SIMPLE: Motorcycle sports headset is compact, simple and elegant, installation is not cumbersome, comfortable hand feeling lacquered shell. Specification: Item Type: Motorcycle Helmet Bluetooth Headset Material: ABS Color: Black Battery Type: Built In 500mAh Lithium Battery (Included) Bluetooth Version: 5.0, EDR Frequency: 2.402-2.480GHz Bluetooth Range: Approx. 10-15m / 32.8-49.2ft. Package List: 1 x Helmet Headset1 x Charging Cable4 x Hook and Hoop1 x Microphone Windscreen2 x Screw2 x Nut1 x Fixed Bracket1 x Instruction Manual