The Optoma HZ40UST has been engineered with a short throw lens that allows you to install the projector closer to the wall than usual, so you can enjoy an image of up to 100 inches. The projector uses laser technology to to provide a brighter and more colourful image. The Optoma HZ40UST also features an integrated speaker and a variety of connectors at the front with two HDMI interfaces. Not to mention the fact that it can be used with the Google Chromecast, Amazon Fire Stick, or Apple TV. Therefore, it's not only great for use in the professional sphere but also for leisure.