Features: E-ink, like real book, no radiation, font scaling easily, can read in sunlight with no glare, protect eyes Without radiation: safety to use, avoid radiation damage to the body as general electronic products, it is your healthy reading partner Slim and lightweight delicate body, like a notebook, easy to take Big memory can contain thousands of book, pictures, sound, make life easy Font size adjustable: 6 levels, make elder reading easily Bookmark list, distill bookmark, detect bookmark function make continue reading easily Specifications: Display size: 6.0 inches Display technology: E-ink Display resolution: 800 x 600 pixels Full fittings: energy book, USB line, charger, and leather cover Text formats: DOC, TXT, PDB, HIML, and PDF Image format: JPEG and BMP Music format: MP3, ACC, WMA, OGG, FLAC, and AP Battery type: lithium battery (can recharge 300 times, 11 hours reading for full power, recharge time of 2.5 to 3 hours) Memory: 4GB Languages: English, French, Spanish, German, Italian, Portuguese, Russian, Japanese and total 18 kinds (can be customized) USB host 2.0 supported Working temperature: 0 to 50°C