... )USB 2.0 port,SD card reader 3)MP3,WMA music 3)Efficient Delivery car FM,car ... without built-in memory. It is a MP3/MP4 player special used in car, it can ... mp3 decoderchip decode MP3 file from inside flash memory to audio signal, and transmit them throughFM modulator chips change ... lyrics, volume, EQ mode, player mode, player pathMusic MP3,WMAUSBUSB 2.0External memory cardSupport SD cards, Max. to ...