mini car speakers 1:Support USB/TF Card/FM function 2:Built-in LED Display,Digital ... screen display 3:Built-in lithium batte Mini Car SpeakerSupport USB/TF Card/FM functionUnit Price: SNR:> 85dBRated Power:3W* 2Price ... working stateBuilt-in Audio decoder,Automatic playing once TF Card or U Disk PluggedFull Compatible with Audio file,as ... CE,FCC, RoHS Warranty: 1 year Mini Speaker with USB/TF Card/FM