... 2. convenient to carry 3. scan file,book,picture Any time,any place, you can get any scan ... dpi(default); High resolution: 600x600 dpi;External memory card: Support Micro SD card up to 16GBFile format: JPEGLCD: scanning status ... SD,Scan A4 size file, the quantity of picture is various and depend on the content complexity ... Manual HandyScan , file scan , book scan , picture scan, Convenient type scanner