... with projector ,TF card 5.0MP portable A3 USB document Scanner Spec: TypeDocument ScannerScan Element TypeCMOSColour Depth24 BitInterface TypeUSB, independent ... ~1/10000SAuto Power offOn/off, 1Min/3Mins/ 5MinsPower supplyBuilt -in Lithium battery(5V,1200mA) / 5V USB cable supply Battery ... 2.0 interfaceHDMI output 720P WVGAP, VGA, QVGABuilt-in Lithium batterySupport working with or without Computer