In usually we have to use earphone to enjoy the mp3(mp4) music which is not very safe when driving.Now we can offer the car mp3 player and you can enjoy the music freely without earphone in the car. This kind of mp3 used u-disk/SD/MMC as mobile memory. 1. New Car mp3 player: Change audio signal into FM signal and transmits wirelessly. You could enjoying mp3 music in u-disk via car radio without earphone. 2. Car wireless patent technology: making the disturbance from outside, the sound effect is wonderful; extreme music experience 3. Two FM channel 88.9MHZ, 107.9MHZ, neednt change FM channel to make the sound good .The good sound effect is stable. 4. Car sound transfer: Two interface for mp3 5. Connected to many frequency equipments, like MP3\PDA\CD\DV\Portable DVD etc. 6. Good memory function: can remember the song played last time. 7. Fashionably and unique design ,Own outlook patent. 8. Support MP3 etc format. 9 .With SD/MMC reader, support SD/MMC card too. 10.Radiation distance: 3-5 meter( best effect )