Sony DPT-S1 Digital Paper System The revolutionary way to annotate, share, and save documents for academics, researchers, scientists, legal professionals, film crews, and many more Full-page letter-size (8.5x11) so you never need to scroll to read World's thinnest, lightest bodythe thickness of 30 sheets of paper High-contrast display for comfortable reading, even outdoors Touchscreen to easily turn pages, search or navigate documents, and zoom in on figures, tables, charts, graphs Convenient stylus for handwriting, highlighting, erasing Low power consumption - rechargeable battery lasts up to 3 weeks on a single charge Connect via Wi-Fi and easily configure to interface with document repositories and/or servers