[ DESIGN] Enjoy effective splash protection with a design (not for submersion). [HIGH-SPEED PERFORMANCE] Experience fast operation with a high-speed built-in ARM9 core. [EASY NAVIGATION] Easily find and preview book chapters and pictures with the independent flip-book button. [CUSTOMIZED READING] Reduce reading fatigue by adjusting font size and brightness with the read assistant feature. [EFFORTLESS BOOKMARKING] Skip pages and add bookmarks for easy resume, no need to re-read.