Features: 1. Bluetooth 5.4 Chip: Equipped with advanced Bluetooth 5.4 technology, featuring smart noise cancellation to eliminate interference and signal dropouts caused by the 2.4GHz band, ensuring a stable connection experience. 2. Long Battery Life: A single charge provides over 40 hours of continuous use, eliminating battery anxiety and offering a worry-free, long-lasting experience. 3. HD Sound Quality: With 40mm metal diaphragms delivering powerful bass, combined with multi-band dynamic response algorithms, enjoy immersive 3D surround sound for a richer and more detailed audio experience. 4. Voice Assistant: Easily operate with a short press of the voice button, even when wearing gloves, freeing up your hands and enhancing convenience. 5. Compatible with Various Helmet Types: Compatible with all helmet types, eliminating issues with fit or complicated installation, and ensuring a smooth, perfect match. 6. Easy Installation: Classic split-type design for easy installation and removal, offering safety and efficiency. 7. IPX8 Waterproof Rating: With an IPX8 waterproof design and ABS silicone sealing structure, it provides deep protection for internal components, effortlessly withstanding heavy rainfall. 8. LED Display Screen: Built-in high-brightness LED display screen shows device status and battery level clearly, providing convenient access to device information and ensuring a smarter, more efficient experience. Specifications: 1. Chip: Jerry AC7065F 2. Bluetooth: 5.4 3. Transmission Distance: 10M 4. Battery: 800mAh 5. Battery Life: 40H 6. Voice Assistant: One-touch activation supported 7. Waterproof Rating: IPX8 8. Installation Method: Split-type installation 9. Ambient Light: On or off toggle supported 10. Flashlight Mode: Supported 11. 40MM Diameter HD Speaker 12. FM Radio Function 13. Battery Display Function Package includes: 1xHelmet Headset 1xSpeaker Microphone 1x base 1xVelcro Mounting kit 1xType-C Charging Cable 1xUser's Manual 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.