... once TF Card or U Disk PluggedFull Compatible with Audio file,as MP3 file. USB2.0 High speed port,Support ... USB HOST,hot-plugging Support AUX IN,connect with TV , cell phone , mp3 ipod, Iphone,Ipad,PC as Hi-fi ... speakerBuilt-in HD digital FM radio module 87.5-108MHzFrequency ... ) Approval: CE,FCC, RoHS Warranty: 1 year Mini Car Speaker with USB/TF Card/FM