... -7" touchscreen ebook -FM Radio & Voice Recording (WAV) function -Pictures & Txt files rotate function -MP4 Player -4G flash 7 inch Ebook Reader 4GB Colorful ... to 4GB)Supported file system: FAT16/FAT32Display size: 7-inch (4:3)Resolution: 800 x480 pixelsOperation: key-pressAudio formats: WAV, ... HTML, PDFPicture format: jpg, bmp, pngSchedule Power off: Support 3 min, 5 min, 10 min, 15 min, 20 min, ...