Features: -Full color OLED(3 colors) -Plug-and-play MP3 player -Music Format MP3 or WMA -Built-in English-Chinese Dictionary. -Mulitilanguage:Chinese GB,Chinese BIG5,English -Bulit-in FM(75-108kHZ) -Support e-books -Storage capacity: 128M,256M,512M,1G bytes -Display 4 lines of character. -Multi-speed playing ,no abortion when speed changes -A-B Re-read function -Alnico panel with super small volume design -Use super stable flash CMOS chip. -Built-in Li-on battery. -Signal to noise ratio:95db. -Frequency Response: 20Hz-20KHz -Color:Silver,Black,Red,Blue