Fangrui Product Details 1. Lx1 Motorcycle Half Helmet Waterproof Wireless 5.3 Bluetooth Headset 2. Material: Abs+silicone+pc 3. Bluetooth Version: 5.3 4. Input Voltage: 5v 5. Battery: Built-in 3.7v, 350mah Lithium Battery 6. Working Time: 25 Hours 7. Standby Time: 240 Hours 8. Protection Level: Ipx6 9. Connection Distance: 20 Meters 10. After Installation, It Can Be Stretched Up And Down And The Angle Can Be Adjusted For Better Radio Reception 11. The Voice Assistant Can Be Woken Up, And The Mobile Phone Double-clicks The Minus Sign To Start 12. Bluetooth 5.3 Stable Connection, Intelligent Noise Reduction Processing, Clearer Voice Calls 13. Built-in Large-capacity Battery, Low Power Consumption, Long Battery Life 14. Easy To Install And Use, For Summer Half Helmets 15. Non-in-ear Design, More Comfortable To Use When Talking, Turning On The Sound Will Not Affect External Reception, And Riding Is Safer 16. Intelligent Noise Reduction Processing To Ensure Call Quality And Improve Voice Clarity 17. Two Mobile Phones Can Be Connected At The Same Time To Control Basic Functions, Such As Answering Calls, Playing Music, Etc. 18. Support Automatic Answering Of Incoming Calls, If You Do Not Want To Answer, You Can Press The Button To Refuse 19. Support 25 Hours Of Continuous Talk And Up To 240 Hours Of Standby Time 20. High-quality Abs Shell, Surface Rubber Oil Treatment, Internal Silicone Mosaic Structure, Deep Waterproof And Sunscreen 21. Ipx6 Level Protection, It Can Be Used Normally In Rainy And Snowy Weather 22. Dimensions: 101x63x35 Mm 23. Pcking List: 24. - Host X 1 25. - Microphone X 1 26. - Usb Cable X 1 27. - User Manual X 1