multi-media USB mini speaker box 1,double play format MP3,WMA 2,high capcitive ... V (maximum 2V ppm)0.5 V (maximum 2V ppm)Speaker Impedance4Ω4ΩDistortion≤5%≤5%Torch LightΦ5N/A FM ... FM moduleP5807P5807FM band range87.5 - 108 MHz87.5 - 108 MHzSensitivity75 Ω75 ΩMono, 26 ... lithiumUSB input 5V/500MA 1100MAH rechargeable lithium multi-media mini speaker box,WMA,MP3 player