... Virtual Display, None radiation LCD panelEnjoy movies, music, game, photos and favorite books everywhere you goBuilt-in 4GB ... devicesSleek ergonomical design, comfortable wearing, light weighted, Support multimedia video format like Mpeg, AVI, RM, RMVB, FLVQuality stereo ... Music Feature: Diversified folders, playlists, editEbook feature: Bookmark, Page jump, Txt Color, Txt Size,Browse Mode, Auto-paging ...