Acer H7531D DLP Home Theater Projector (1080P) Acer ColorBoost II Technology Delivers richer details, smoother gradation and brighter natural colors for more life-like images. Lets you project accurate images on colored walls. Dynamic Black Technology Dramatically improves image contrast by using dynamic aperture adjustment to analyze content frame by frame. And multi-channel audio, providing easy connectivity to high-quality HD broadcasts or entertainment.