Kick back and enjoy pictures projected at 26dB with the BenQ MP512 Digital Projector. Silent Engineering means that we look everywhere for improvements. We've re-designed our color wheel for maximum absorption of noise and vibrations. We've also added a damper fixed between the MP512's color wheel and bracket for added reduction in noise and vibration. Wall color correction provides optimized viewing experience for different surfaces, such as a classroom blackboard, that might be used to display content instead of a regular projector screen.