1.Cordless handheld scanner 2.600/300 DPI scan selection 3.Color/black and white scan selection 4.Saves directly to micro SD ... dots available)ResolutionLow resolution:300*300 dpi(default)High resolution:600*600 dpiMaximum scanning speed for A4 size documentColor High resolution: ... manuel1pcs 5pcs,Free EMS,Portable scanner,HandyScan,mini scanner,scan,scanner,600*600 dpi,A4 Color Contact Image Sensor