Elfinbook 2.0 is waterproof, eco-friendly and rewritable in conjunction with ancillary pen. Bundled with companion Elfinbook App it automatically scan the contents from the book, crops and improve the image quality. It even has some nifty features like OCR & cloud storage. Its like getting soft & hard copy in one shot & a notebook that lasts for a lifetime (500 times rewritable). Suitable for all ages & genres - designers, students, engineers & children alike...