1. R.M.S.:10W
2. Frequency Response: 20Hz ~ 20KHz
3. Input Impedance: 75KΩ
4. Input Sensitivity:5dB
5. S/N Ratio:≥ 40dB
6. Driver Unit: 4 inch / 8Ω
7. Dimension:(W × D × H) 250.5 * 109.5 * 163.3mm
8. Charing time: 3~4 hours
9. Play time: 3~4 hours
10. AC: 110V/220V 60Hz/50Hz(Switchabel)
11. DC: 4.5V(UM-1×3 size batteries)