A1 IP67 Waterproof Motorcycle Helmet Noise Reduction Bluetooth Headset Features: 1. Customized speaker with upgraded diaphragm, HIFI sound quality 2. Bluetooth 5.4 wireless connection, connect in seconds without delay, strong signal and not easy to disconnect 3. Built-in large-capacity battery, long battery life 4. LCD digital display screen, convenient for observing function status 5. FM radio, strong sound signal, sensitive and stable 6. Supports simultaneous connection of two devices 7. CVC intelligent noise reduction, clearer calls 8. AI voice assistant, one-click easy wake-up 9. Incoming calls are automatically transferred in ten seconds, safe and reliable Product parameters: 1. Material: PC+ABS 2. Bluetooth version: 5.4 3. Communication distance: 15M 4. Noise reduction type: CVC 5. Speaker specifications: 40mm 6. Waterproof level: IP67 7. Charging interface: Type-CUSB-C 8. Battery capacity: 1000 mAh lithium battery 9. Charging time: 1-2 hours 10. Playing time: 48 hours 11. Talk time: 38 hours 12. Prompt voice: Chinese, English 13. Product size: 96 x 45 x 67mm 14. Weight: about 54 grams 15. This product is measured manually, and there may be errors of 0.1-0.2 mm and 0.1-0.2 grams in length and weight; there may be a slight color difference due to display and light problems. Please refer to the actual product!