6.8-inch touchscreen display with 300ppi resolution features a built-in adjustable light so you can comfortably read in any lighting conditionsFlush-front design and glare-free display delivers a paper-like reading experience with laser-quality text that won't strain your eyes32GB of internal storage holds thousands of books so you can take your library with you wherever you goUSB, Bluetooth, and 802.11 a/b/g/n/ac Wi-Fi connectivity make it a breeze to transfer books on and off the deviceAmazon Book Store provides access to thousands of titles at your fingertipsWater-proof design (IPX8) makes it safe to read by the pool, at the beach, or in the bathtubLithium-Ion battery can last up to 10 weeks (depending on usage) so you can curl up with a good book for days at a timeAdjustable screen with adjustable warm light and auto-adjusting front light delivers a personalized reading experience, day or night