usb mini speaker

1) AC100-220V, 50/60Hz, DC5.5V±5%. With Remote control
2) Output: RMS 4Ω  (3W 3W)THD=10%
3) FM radio frequency response: 150-18000Hz
4) Signal and noise ratio of power amplifier: ≥80dB
5) Rechargeable Li-ion Battery: 3.7V / 800mA
6) Loudspeaker: 2.5inch (external diameter 66mm)  Magnetic resistant: 4Ω

7) Led light on volume knob, to enable visual effects.
8) For use with: Mobilephone/Ipod/PSP/MP3/MP4/usb/microsd                                

9) 3D Label.

usbmini speaker