... all the monitor or projector in the market.Highlight:1 Support multi-touch,4 points, 16 points, 32 points and 256 points2 ... design, Super thin design 4 Adapt to a wide range of size (27-180 inches) 5 Fully compatible with windows XP OS, windows ... AC: 100~240V,50~60HzOutput:5V,4AInterfaceUSB 2.0(Full speed), compatible with USB 1.1 portHID compiant, plug-and-play compatibleOperating SystemWindows XP ...