... Screen) 1. Ultral design, portable 2.E-book format: ANSI, Unicode TXT, Doc, PDF, HTML, FB2, PDB,and ... EPUB 7 inch E-Book(Touch Screen) Product Readme Display: Display type: Touch Screen Digital ... polymer (2,800mAh) Mode of operation: Touch screen keypad E-book: ANSI, Unicode TXT, Doc ... , 10, 15, and 20mins Screen refresh: full screen refresh and partial refresh With calendar and G-sensor USB port ...