Model No.:C003 1)Read MP3 files from USB flash disk or SD/MMC card, transmit music signal over car FM tuner, then enjoy music via car stereo. 2)Plug in SD Card.Enjoy your favourite music. 3)Plug USB Device into Car Mp3 player. Plug Car Mp3 Player into cigarette Lighter of your car directly. 4)Turn on your car stereo and tune to the same frequency as your Car Mp3 player. Press the Play button of the Car Mp3 Player to enjoy your music. Apply to usb Device and Mp3 player. 5)Support external audio player (MP3/mp4 Player, CD, VCD, etc). Draw power from the cigarette lighter in the car (DC12V power). 6)Rotary joint design more convenient to adjust the device position. 7)Frequency and track memory function 8)206 FM frequencies. 9)LCD displays the volume and ordinal number of English song 10)Infrared remote controller operation: Song selected by number/select frequency/adjust volume/adjust EQ modes.