---MP3 player with built in FM transmitter function.--- Able to change the audio signal into frequency modulation signal and transmit it wirelessly to the speaker of the car and play. No need to change any original equipment of the car and it is convenient and economic. Key features: 1. Delicate design 2. Support MP1、MP2、MP3、WMA、WMV、ASF、WAV etc. music play mode. 3. Firmware upgradeable 4. It has been adopted phaselock loop technology, which ensures stable frequency radiation while functioning at a distance of up to 10M without dead areas so that you can still enjoy HI-FI music at home or in your car. 5. Record function: long time recording with built-in microphone 6. 7 mode equalizer 7. USB flash disk, 64MB/128MB/512MB built in flash memory 8. Size: 90mm*33mm*10mm 9. Net Weight： 45g 10. Graphic LCD with blue color backlight 11. USB high-speed transmission, recharge battery can work for over 6 hours 12. Support English/Chinese language display Accessories: Stereo earphone, driver抯 CD, user抯 manual , USB extension cable, Car charger