3.5" Large Screen - Pyrus Electronics 4gb 3.5" Touch Screen Mp3/mp4/mp5 Personal Multimedia Player 3.5 Inch High Resolution TFT Touch Screen Play most MPEG4, WMV, AVI, RM, RMVB and FLV without conversion (other formats can be converted to one of the 6 supported formats to play) Tested to be compatible with Overdrive Media Console (audio book) It plays musics purchased from Napster and most other websites. However, it is NOT compatible with Napster to Go or any other service.