S21 Riding Helmet Bluetooth Intercom Headset, Specification: With USB Cable(Black)

1. Structure waterproof and nano-waterproof, effectively blocking rain, rain can also be used 2. USB interface charging, support charging while using 3. Intelligent power management system, low power consumption 4. Functions: call, voice, music, FM 5. Bluetooth: 5.0 6. Transmission distance: about 10m 7. Sound channel: stereo sound 8. Battery capacity: 1000mAh 9. Charging interface: USB 10. Charging time: about 2-3h 11. Use time: about 21h 12. Material: ABS, silicone 13. Waterproof rating: IP67 14. Weight: about 199g Packing list: - Earphone x 1 - USB charging cable x 1 - Instruction manual x 1 - Paste sheet x4