Portable mini  speaker with the most perfect sound performance in the world! Work for IPOD, CD, VCD, MD, PSP, MP3, MP4 etc

Specification:
1) Material: Pure ABS
2) Output power: 2W×2
3) Frequency: 150HZ~20KHz
4) Impedance: 40Ohm
5) Input power: DC5V, USB powered
6) Built-in Lithium battery, working up to 5 hours