... 4GB Colorful TFT Screen Touch screen Ebook Reader e-book mp4 player video player FM digital photo frame Battery 2100mAH supports ... ) functionSpecification:Interface: mini USB2.0 (charging), headphone, SD card slotStorage memory: NAND flash Storage capacity: 4GBExternal memory: SD/SDHC ... ,mpeg4, etcText formats: TXT, EPUB, HTML, PDFPicture format: jpg, bmp, pngSchedule Power off: Support 3 min, 5 min, ...