The Reader (model PRS-505) features a svelte body design. Re-styled controls more closely mimic paper page turns and allow for quick, intuitive navigation. A next-generation electronic paper display delivers faster response and a higher contrast ratio for easy reading even in bright sunshine. Eight levels of gray scale provide for crisp and clear text, images, and graphics. This device is designed for people on the go, this device is compelling because it allows them to carry a wide variety of reading materials whether they are on a cross-country flight, in a doctor's office waiting room, or at a beach resort. The Reader can handle a stack of books and other documents that people would rather not carry, yet offers a 'book-like' reading experience unavailable with other electronic devices. With the capacity to store up to 160 typical eBooks, the Reader can act as a mobile library. Expansion slots for Memory Stick Duo media or SD memory cards make the device's library potential practically limitless. More advanced users will appreciate the USB-based mass storage capability that allows them to use the device as a portable drive for the direct transfer of documents, images and other files to the Reader. A new auto sync feature also lets users set up folders with books and documents that can be automatically synchronized when the device is connected to a PC.