... ,WMA 2,high capcitive battery 3,FM radio,LED flashlight. mini speaker/MP3:Selling PointSupport USB Flash Driver, SD card, Line In, Torch ... V (maximum 2V ppm)0.5 V (maximum 2V ppm)Speaker Impedance4Ω4ΩDistortion≤5%≤5%Torch LightΦ5N/A FM ... rechargeable lithiumUSB input 5V/500MA 1100MAH rechargeable lithium multi-media mini speaker box,WMA,MP3 player