POWER SUPPLY: WITH LI-ION BATTERY , DC 5.0V BY COMPUTER/LAPTOP
SPEAKER UNIT:2W*2
OUTPUT POWER:2W*2 4Ohms(1KHz 10% THD)
EREQUENCY RESPONSE:275Hz-20KHz
PRODUCT SIZE: 21* 11* 8CM

Selling points:

1.Can be charged by solar, then store power into the li-ion battery.
2.Support iphone, ipod, mp3/4, computer etc.

3. Can put your iphone/ipod/mp3 into speaker bag and enjoy music everywhere.