Function of Projection of boardProjection gainavailableViewing Angle170 degree in Horizon, 160 degree in VerticalSurface Materialhigh abrasion-resistance, PVCElectrical performanceInduction wayinfrared inductionPower InputDC5vCurrent consumption=100mA(USB power supply,no extra power)Signal InterfaceUSB2.0USB cable connection can support maximum length10mTransmission Speed12M/sAnti-light intensityUse under direct sunlineScan speedThe first point 25 ms, consecutive points 8 msCursor speed180 points / secDisplay resolution800*600 1024*768 1280*1024Support projection display ratio4:3/16:9AccessoriesWall-mounted Annex; Pen, ferule, Software Installation Disc, User Guide, USB CableWarranty3 yearsCertificatesCE; FC