... 3)Language:English,Russian,Polish etc.. 6'' E-ink ebook reader with 4GB e-book reader. 1) ... 6 inch e-ink Display,Technology: Electronic Paper,2) Screen Size: Approx ... Scale: 16 Level Gray Scale5) Operating System: Linux (free)6) File System:FAT,FAT16/32 etc.7) Book ... Audio Format : MP3,WMA,FLAC Etc.12) Battery Pack, Battery Type: Removable Battery,Rechargeable Lithium-Polymer,Model ...