1.Display:1.8 inch 65K colorful CSTN screen 2.Audio format:MP1, MP2, MP3, WMA,WMV,ASF 3.Video format:AMV 4.Picture view:support JPG 5.Voice recording function 6.A to B function 7.Phone book 8.E-book function 9.Game function 10.EQ mode: Normal/ Rock/ Pop/ Classic/ Soft/ Jazz/ DBB 11.Cys mode: Normal/single song cys/catalog play/catalog cys/all cys/random playing 12.FM built-in (optional) and setting 20 channel, and FM recording function 13.Power: built-in rechargeable Li-polymer Battery for over 8 hrs playtime 14.Operating languages :multi-languages 15.USB interface :USB2.0 16.Operating system : WIN98/ME/2000/XP/MAC OS10.3 /Linux 2.2