1.Read MP3 files from USB flash disk or SD/MMC card,transmit musicsignal over car FM tuner,then enjoy music via car stereo. 2. Support external audio player(MP3 Player,CD,VCD,etc.). 3. Support queue songs function. 4. Draw power from the cigarette lighter in the car(DC 12V power). 5. Rotary joint design more convenient to adjust the device position. 6. With remote controller,more convenient to control. 7. Frequency and music track funtion. 8. 206 FM Channels(87.5~108MHz).