A total classroom interactive solution, the MW853UST+ offers superior connectivity with ultra short-throw design, dual HDMI inputs and optional PointWrite interactivity. The 10000:1 ultra-sharp contrast ratio, 3200 ANSI lumen brightness and lamp life are enhanced by the SmartEco technology for long lasting, reliable and vibrant images. More, vertical lens shift design offers more installation flexibility. Teachers now can turn any space into an interactive whiteboard and get up to 4 students to collaborate simutaneously with PointWrite pens or simply with fingers. Keeping students involved and engaged is a central practice in the BenQ Smart Classroom concept- simply integrating MW853UST+ with latest PointWrite technology is a great way to let multiple students contribute at once. BenQ"s MW853UST+ installer-friendly ultra short-throw projector wall mount features an installation chart and a measuring ruler to help you find the most suitable projector-screen alignment and image position for your classroom. Lens shift offers the extra flexibility to overcome any minor miscalculations during projector installation. All you have to do is adjust the switch to shift the projected image up or down by 4%. With this helpful feature, you"ll never have to worry about positioning the projector slightly out of place again. Offering lower TCO and optimized projection through dynamic power saving, uncompromised brightness, exquisite picture quality and optimized lamp life -SmartEcoTechnology has perfected what a DLP projector can do. The Eco Blank Mode, which lowers power consumption up to 70%, can be used to blank the projection screen when the projector is not in use, in turn eliminating distractions in class and redirecting students" focuses back on the teacher. Good things come in short distance you don"t need a big room or a lot of free ceiling space to create a big picture when you"ve got an ultra short-throw projector.