Car mp3 player fm transmitter usb 1.FM,USB.SD and MMC 2.Compatible WMA, WAV ,ASF formats 3.AUX,EQ,Electronic audio control Instructions car mp3 player fm transmitter usbDescription ... from USB flash disk or SD/MMC card,transmit musicsignal over car FM tuner,then enjoy music via car stereo. 8.Support external audio player(MP3 Player,CD ...