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 ... USB2.0 High speed port,Support USB HOST,hot-plugging Support AUX IN,connect with TV , cell phone , mp3 ipod, Iphone,Ipad, ... ,FCC, RoHS Warranty: 1 year Mini Car Speaker with USB/TF Card/FM