multi-media USB mini speaker box 1,double play format MP3,WMA 2,high capcitive battery ... PointSupport USB Flash Driver, SD card, Line In, Torch Light, FMSD card, Line In,FMSpecificationOutput power3W2WSNR≥ 60 dBA≥ 60 dBAFrequency response20-20KHZ ... rechargeable lithiumUSB input 5V/500MA 1100MAH rechargeable lithium multi-media mini speaker box,WMA,MP3 player