1) Slim model, fashion designing, "2) Supports TXT file E-book " 3) Support navigation function for file cataloge 4) Storage facilities for phone number or the message comunications 5) Supports multi-languages 6) Double color OLED display 7) Ultra fast USB 2.0 transfer 8) Repeat A-B function, and support long time recording 9) No driver needed under Windows ME, 2000, XP or above (except win98) 10)ID3, can display lyric synchronously 11) Build in a rechargeable lithium battery inside