Helmet Headset Bluetooth EDR Stereo Wireless Hands Free Intelligent Voice Rechargeable Endurance Waterproof with Mic for motor bike Cycling Feature 1.Fashion design, let music surrounding your life any time. 2.handsfree function, turly free your hand. 3.set-in rechargeable Li-ion battery, long stand-by and working time. support power displaying on iphone, easy to know when will to be charged. 4.New waterproof structure design,supports the Siri intelligent voice control function of the IOS 4.0 and above, and suports android intelligent voice control function, convenient, quick and intelligent. 5.Using the latest Bluetooth 5.0+EDR Bluetooth technology, superior signal transmission, ultra-low power consumption, all Bluetooth devices, automatic answering function, switchable manual answering phone function, safe and fast, built-in high quality anti-interference microphone It can effectively realize hands-free answering and hang up calls. High fidelity sound , support last song or next song function, volume addition and subtraction, playback pause, automatic callback and other functions, easy to operate. Specifications Bluetooth Version:V5.0+EDR(BT8) Frequency:2.40GHz-2.480GHz Range:10-20 meters(depending on device) Li-ion battery: 3.7v/820mAh Playback time: About 70hours Charging voltage: 5V Standby time: 280 hours. Package comes with: 1* Helmet Headphone Set Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.