The Vivitek D557W compact mobile video projector is equipped with a Direct 3D function for an immersive projection experience anywhere.The D557W video projector features DLP BrilliantColor technology for a bright and colourful display under any circumstance, regardless of the video source. With a contrast ratio of 15,000:1 and a brightness of 3000 ANSI Lumens, images are particularly sharp and well contrasted.To take full advantage of the 3D technology of this video projector, a pair of 3D glasses is required.