1. Bluetooth version: 5.3
2. Vibration speaker size: 16mm
3. Transmission distance: more than or equal to 10m
4. Play time: 7h
5. Charging time: 2h
6. Speaker specifications: 0.5W 8 86+3DB
7. Charging interface: Micro USB
8. Rated input: 5V 100mA
9. Battery capacity: 135mAh