1)Support MP3,WMA,MAV music format2)FM stereo sound radios can store 40 (20 each standard) different local radio frequency (optional)3)recording  function,Through the microphone for recording and preserving the voice file format WAV and Act (optional)4)128M~1G alternative memory capacity, avoid driving U disk function, the system is installed in more than WIN2000 driven procedures USB penetrated straight into functional5)Built-in high-capacity lithium batteries can rechargeable