Main display6 inch e-ink panel Display controllerepson display controller Back lightno back light without no any radialization Display size6 inch (800x600) Processorxburst core (as3525) Operating systemlinux2.6 Ram memorysdram 2gb Batteryli-ion 1200mah Battery life11000 screen refresh (est. 3 months based on reading speed of 500pages per week) I/o"3, 5mm stereo audio jack for earphones Usb port Built-in speaker." Connectivity"hs usb client Built-in wifi (ieee802.11b & g)(optional)" Storage memorytf card (up to 8gb, support sdhc) Format support (with cyrillics supporting)txt, epub, doc, chm, htm, html, pdf, jpg, jpge, bmp, gif, mp3 Audio format supportmp3(32kbps-384kbps) wma(32kbps-192kbps), Font size changing function6 sizes Other featuressearch book by filename, auto-resume, bookmarkingí¡ Page number indicationyes Languageenglish, french, russia, dutch, german (can be customized) Greyscale8 level 20pcs 605mm*325mm*230 30pcs 605*485*230