Effortlessly project brilliant and realistic presentations at any time of day in HD. Designed for meeting rooms and classrooms. the W334e has incredible colors. long lamp life and energy saving features to give you a low overall cost of ownership. This projector is easy to connect with multiple inputs and features a built-in speaker and USB power. Perfect for connecting HDMI dongles like Optoma HDCast Pro and Google Chromecast or laptop. PC or Blu-ray player for clear projected images with sound. Deliver powerful presentations and class lessons with stunning color. Optoma projectors give you reliable performance of the right colors for any content and environment. Accurate sRGB colors for life-like images and powerful presentations. Add more depth to your image with a high contrast projector. Compared to competitive technology. Optoma DLP projectors deliver brighter whites and ultra-rich blacks. images come to life and text appears crisp and clear. ideal for commercial and educational applications.