The Optoma's TX542-3D Projector is designed to meet the demanding requirements of school districts and businesses. Bright, high contrast images provide easy-to-read text, and the built-in closed captioning decoder displays text from videos that have closed captioning embedded in the signal. The DLP multimedia projector has a high contrast ratio of 3000:1 and is also equipped with a built in 10 watt speaker system that lets you play audio files with much ease. User-friendly features like remote management and control make this Optoma projector stand out from the rest. It comes with a wide range of audio and video connectivity options and can project images clearly in a distance range of 4 to 33 feet. This Optoma TX542-3D Projector has an enhanced lamp life cycle of about 4000 to 5000 hours and thus is highly reliable and functional. Now make your slideshows and stream videos with amazing picture quality with this DLP multimedia projector.