USB speaker iphone digital speaker

a) Super subwoofer 2.1 independent cabinet design;
   2inches in high fidelity tweeters;
   4inches high power magnets speakers,bass shock elastic;

b) FM radio function, the built-in antenna, channel surfing range van program lock ability.

c) four ports on the back: SD card port, USB port, Mini USB port, and DC port.Easy connectiong computers, Mp3,Mp4, ipod, PSP,CD,mobile phones and other stereo audio source. SD(TF)/MMC card and USB dish could broadcast directly.  

Color: black and white

Power from: USB port or AC adapter (rechargeable)