electric sceen 1.more than six years in screen area. 2 ... . 3. European,Poland,UK,USA,Brazil 4.pass CE ROHS electric remote screen ,projection screen projector screenAppearance sharps: square (quadrilateral), octagon, ... grey matte white, glass beaded, grey glass beadedControlsPower switch, Wireless remote controlEquipped with three buttonsup, stop, downPlug PowerArbitrary national standard plugs ...