multi-media USB mini speaker box 1,double play format MP3,WMA 2,high capcitive battery 3,FM radio,LED flashlight. Selling PointSupport USB ... In,FMSpecificationOutput power3W2WSNR≥ 60 dBA≥ 60 dBAFrequency response20-20KHZ, ± 3 dB20-20KHZ, ± 3 dBAUX input sensitivity0.5 V (maximum 2V ppm)0 ... rechargeable lithiumUSB input 5V/500MA 1100MAH rechargeable lithium multi-media mini speaker box,WMA,MP3 player