Features: 1. 2.8" true color TFT LCD. 2. Built-in 2GB Nand Flash, can store a lot of ebooks, and also use SD card to store. 3. 32 bit CPU, Mp3 sound. 4. Learn with pet, funny to guide. 5. All have textbook from primary school and middle school, Tutorship of nine subjects. 6. Standard English and Chinese voices. Professional broadcaster read. 7. Many dictionaries, English-Chinese dictionary, Chinese-English dictionary, Chinese dictionary, Chinese idiom dictionary, Animation dictionary. 8. Calculator, Math formula, Weights and measures, Physical formula, Chemical formula, etc. many way to learn, a good helper for learning. 9. Mp3, Mp4, pictures, poem, educational games, story, e-book. 10. Many ways to learn, follow / contrast, repeat, speed, explanation, test, classroom guidance. Page saving, avoid to choose the same page during a period. 11. Data encryption, data can't be copied. 12. Skip to look up words. When one word you don't know, search it in dictionary directly. Specifications: DSP: 32bit RISC MCU LCD: 2.8" TFT Speaker: 8Ω 1W Memory: 2GB Extension: SD card 512MB~4GB Dimension: 300*257*38.5mm Input: 100~240V AC 50/60 Hz 0.15A Output: DC5V === 500mA Battery: 1.5V*4 AA Weight: 2Kg Temp: -15℃ --- 45℃