... :128MB Maximum support 4GB (optional)Product Features:LCD video book with screen Specifications: LCD Size2.4''2.8''3.5''4 ... USENOTE:Touch screen, PUSH button, PUSH PIN, Magnetic switch, light sensor, motion sensor, etc, are optional.Highlights: video book, video greeting card,USB ... ” 4.3”,5'', 7" and 10 inch,2. Flash Memory Size: 128MB, 256MB, 512MB, 1G, 2G, etc.3. Battery: 500mAH, 1000mAH, 1500mAH ...