Features:<br> 1. Utilizes the latest CSR4.0+EDR Bluetooth technology, super strong signal transmission, ultra-low power consumption, and expenditure of all Bluetooth devices;<br> 2. support for automatic answer function, can switch to manually answer the phone function, safe and fast, built-in high-quality anti-interference microphone, can effectively realize the hands-free answer, hang up the phone;<br> 3. high sound fidelity, the function can be operated up and down song, volume up and down, play pause, automatic callback, and other functions, simple operation.<br> Specification:<br> Connection Name: BT<br> Bluetooth Version: V4.2+CSR (update, slightly different from the manual)<br> Transmission Distance: 10M (transmission distance varies due to environmental factors and mobile phone Bluetooth devices)<br> Bluetooth Pairing Distance: 20-30 Meters (depending on the device)<br> Standby: 120 hours<br> Play Time: 15 hours<br> Charging Time: <=1 hour.<br> Lithium Battery: 3.7V/500mA<br> MIC Distance: ≤ 1 meter<br> Frequency: 2402 Ghz-2480 Ghz.<br> MIC Distance: 1 Meter<br> Feature 1: Helmet Headset Bluetooth<br> Feature 2: Helmet Headset Motorcycle Bluetooth<br> Feature 3: Helmet Headset Motorcycle<br> Feature 4: Motorcycle Headset Helmet<br> Feature 5: Motorcycle Headset Bluetooth<br> Feature 6: Motor Headset Bluetooth<br> Feature 7: Helmet Motor Headset<br> Feature 8: Helmet Motor Bluetooth Headset<br> Feature 9: Headset for Helmet<br> Feature 10: Headset Motorcycle Helmet<br> Package Includes:<br> 1* Motorcycle Helmet Headset<br> 1* Cable<br> 1* Manual<br> 1* mic cover<br> 2* static stickers