Portable Speaker，USB mini speaker

selling point：
1).Card speaker which can read TF card and U disk                                 
2).2.0 speaker which delivers very clear and pure sound quality               
3).Aluminum housing which is very light to take                                            
4).Support FM radio function      
5).Built-in rechargeable Li-ion battery

Specification：
1).Rated Power:3W* 2
2).Frequency Response:150HZ---18KHZ
3).S/N Ratio:≥85db
4).Output:DC5V/1000MA
5).Speaker Drivers:4Ω/2W
Accessories:3.5mm Cable,USB cable 
Available Colors:Silver/Pink//Black…
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