... object scan / video recording 3,SD card A3 portable scanner/ document camera Spec: TypeDocument ScannerScan Element ... VGA, QVGAScan resolution400dpiMemory cardTF cardExport formatYUY2Image Rate30fps at VG with USB bandwidthImage ControlBrightness, exposure, sharpness, color, gain, ... VGA, QVGABuilt-in Lithium batterySupport working with or without Computer Handy A3 portable scanner with SD memory card