Uncompromised high brightness MX825STH produces high brightness & resolution for perfect projection performance with crisp images & sharp text even in bright lecture room. High brightness provides clear content under high ambient lighting, allowing lights to be kept on during classes for note taking & interactive collaboration. Crisp readability via high contrast ratio Ideal for text, numbers, and tables widely used in instruction, Ben Q education projectors leverage the native DLP advantage of digitally controlled micromirrors. By completely toggling off reflective micromirrors to generate deep true blacks, Ben Q education projectors create high native contrast ratio for sharp readability & crisp resolution at every single sub-pixel. Enduring picture perfection from DLP technology With sealed design that protects the DLP chip from dust-induced image degradation & the industrial-grade durability of DLP projection technology, Ben Q education projectors are capable of maintaining long-lasting picture quality by eliminating color decay. High DLP pixel fill factor for superb viewing experience Ben Q DLP projectors feature high fill factor, minimizing black borders around each pixel to eliminate the dreaded "screen door effect"commonly observed in non-DLP projectors. Ben Q education projectors produce superior definition & clarity in small-size text & fine details for beautifully rendered images instead of pixelated graphics. Bigger images Ben Q education projectors offer a range of resolutions & projected image sizes to meet diverse classroom needs. Featuring crisp image quality, Ben Q ultra-short throw education projectors deliver increased classroom versatility at reduced costs. Interaction on any surface Point Write technology transforms Ben Q education projectors into collaborative platforms that turn any surface into an interactive whiteboard. Multi-screen drawing With enhanced multi-touch capability for pens or fingers, two projectors can be used in conjunction to double the interactive projection surface, creating vast opportunities for interactive learning in modern digital classrooms. Easy setup & maintenance Offering a big screen in short distance, MX825STH eliminates distracting shadows & glare for students & teachers to engage & collaborate freely in front of the board. Remote control hotkey Press the "quick install"hotkey on the remote control to setup the projector. This is a great time saver for managers performing initial projector installation work. Anti-dust accumulation sensor Incorporating color wheel sensors with an ingenious anti-dust accumulation feature, MX825STH prolongs optimal performance by rejecting dust which can accumulate on traditional sensors to block the IR signal & cause flickering, abnormal colors, or even shutdown. LAN control compatibility Ben Q education projectors offer convenient system integration with various third-party components & cost reduction via central maintenance of multiple projectors. Long-lamp life The exclusive Ben Q innovation Smart Eco technology intelligently modulates light output & perfects DLP's energy saving capabilities to increase lamp life with uncompromised brightness & exquisite picture quality.