Auto MP3 FM Modulator with USB port support mp3, wma 4 in 1 Wireless Auto MP3 FM modulator12V/ 24V wireless transmit by car cigaretteLCD screen display the song namewith USB portwith SD card slot, 4GB max.compatible with portable CD, DVD player via 3.5mm audio cablecompatible with mp3, wmawith remote control NEW Car MP3 FM Modulator