1. Bluetooth speaker, mic inside, hands-free function
2. Rechargeable li-ion battery; charging port: Micro USB
3. Play time: 2-4 hours
4. Bluetooth distance: 10M
5. Bluetooth version: 4.2
6. Speaker: 3W, resistance: 4ohms
7. Frequency response: 100Hz-16KHz
8. Distortion: THD<10%, S/N>=60DB
10. Battery: 3.7V/700mAh
11. Product size: 6.5*7.6cm
12. Product weight: 151g