mini speaker,portable speaker,TF card speaker with high quality Support USB Flash Driver, SD card, Line In, Torch Light, SpecificationOutput ... .5 V (maximum 2V ppm)Speaker Impedance4ΩDistortion≤5%Torch LightΦ5 FM FM moduleP5807FM band range87.5 - 108 ... 400mini speaker,portable speaker,TF card speaker with high qualitySupport USB Flash Driver, SD card, Line In, Torch Light, Portable USB speaker