1. R.M.S.:5W
2. Frequency Response: 20Hz ~ 20KHz
3. Input Impedance: 75KΩ
4. Input Sensitivity:5dB
5. S/N Ratio:≥ 40dB
6. Driver Unit: 3inch / 8Ω
7. Dimension:(W × D × H) 240 * 120 * 130mm
8. Charing time: 3~4 hours
9. Play time: 3~4 hours
10. AC: 110V/220V 60Hz/50Hz(Switchabel)
11. DC: 3V(UM-1×2 size batteries)