Usage Tips:Features 1.Waterproof design for effective splash protection. Can not be submerged in water. 2.Adopt high speed built‑in ARM9 core. 3.Independent flip‑book button, preview book chapters, pictures by thumbnail, easy to find what you want to read. 4.Read assistant, adjust the font size brightness to ease reading fatigue. 5.You can skip the page and add a bookmark function. No need to re‑read. Directly read the bookmarks page you added last time. Specification Features: 1. Waterproof design for effective splash protection. Can not be submerged in water. 2. Adopt high speed built-in ARM9 core. 3. Independent flip-book button, preview book chapters, pictures by thumbnail, easy to find what you want to read. 4. Read assistant, adjust the font size brightness to ease reading fatigue. 5. You can skip the page and add a bookmark function. No need to re-read. Directly read the bookmarks page you added last time. 6. The integrated body design is as thin as 11MM, which is sturdy and durable. 7. 7-inch ultra-clear electronic screen, sharp text, restore paper reading experience. 8. Built-in music, video, photos and other multimedia features. 9. Built-in 2100mAh battery, one time charge can last for several weeks. Specifications: Speed: 380 MHz RAM memory: 512M Operating system: for uCOS Display type: 7inch TFT LCD Ratio: 16:9 Resolution: 800*480 Size: 7.0inch (diagonal) Contrast: 400 (typical) Brightness: 250 cd / m2 (typical) Response time rise: 12ms, drop: 18ms (typical) Top of view: 30°-70°, bottom: 50°-70°, left: 50°-70°, right: 50°-70° External storage TF card, up to 16 GB Battery: 2100 mAH E-book: 20 hours Music: up to 10 hours (backlight off) E-book + music: up to 6 hours Video: Up to 5 hours Charging time (5V, 500mA): 10 hours (about) System Requirements: for Windows XP/Vista/Win 7/Mac 10.0 and above/Linux Storage temperature: -20℃-50℃/relative humidity: 5% to 95% non-condensing Working temperature: -10℃- 40℃/ relative humidity: 5% to 95% without condensation E-book format: EPUB, PDF, TXT, FB2, PDB Photo format: JPG, BMP, GIF, PNG Video format: MPEG1, MPEG2, MPEG4XVID, DIVX, H.264, H.263, RM / RMVB, MKV, MOV, VOB, FLV Package List: 1 * Reader 1 * Charging Cable 1 * Headphone 1 * Leather Case 1 * User Manual Note: 1. Not support for Wifi. 2. Do not come with Power Charger. Package ListBK7019 Portable 7inch E book Reader Colorful Screen Supports TF Card 8G Memory A-C