Mucro H2R Helmet Mounted Bone Conduction Bluetooth Speaker

1. Material: ABS+Silicone+Metal
2. Bluetooth version: 5.3
3. Transmission distance: 10m
4. Battery: 400mAh
5. Standby time: 10 days
6. Power supply mode: Type-C interface
7. Charging time: about 2 hours
8. Horn: bone conduction vibration horn
9. Speaker sensitivity: 86db
10. Waterproof grade: IP66
Accessories list: manual, microphone, USB charging cable, certificate of conformity, base, fixed microphone hook and loop fastener, spare base foam glue