1.Adopts Infrared technology 2.High Quality,Competitive Price 3.All Windows system 4.OEM is accepted Surface MaterialAluminum plastic writing boardInduction WayInfrared inductionThe Induced Objects Any opaque object,such as fingers, pointers,ect. Power SupplyUSB power supply (no extra power)Working VoltageDC 4.6V~DC 5VCurrent Consumption<1W, under voltage USB 5V, current: <200mASignal ...