Parameters: ModelCy-8300c Dimension83 inch Operation principleElectromagnetic induction Hardware requestsCommon pc£»cpu¡ý1ghz£»ram¡ý256mb Operation systemWin2000/xp/2003/vista/win7 Transmission interfaceWireless rf 2.4g Resolution ratio9150*5150 Accuracy< 0.2mm Transmission speed9600bps Power supply modelConnect internal power adaptor Watt< 0.6w Operation environmentTemp-10¡æ ¡« +5520% ¡« 90% Screen dimensionWidth(mm) * height(mm)1905*1120 Active writing areaWidth(mm) * height (mm)1830*1030 Ratio16:9 Net weight21 kg Gross weight22 kg Packaging volumeLength(mm) * width(mm) * height (mm)227*16.5*22cm Length(mm) * width(mm) * height (mm)227*16.5*22cm