Optoma DuraCore ZK420UST 3D Ultra Short Throw DLP Projector - 16:9 - High Dynamic Range (HDR) - Front - 2160p - 30000 Hour Economy Mode - 500,000:1 - 4200 lm - HDMI - USB - Network (RJ-45) - Conference Room, Training Room, Simulator, Class Room, Education, Corporate - 3 Year Warranty: