ViewSonic's PJ1173 delivers maximum impact for large-venue presentations. With 5,000 lumens and 1000:1 contrast ratio, this premium projector is ideally suited for conference rooms, lecture halls, religious sanctuaries and boardrooms. The PJ1173 is full-featured with native XGA resolution, advanced image processing, manual lens shift, horizontal and vertical (auto) keystone correction, and HDMI input for perfect high-def images. The image reversing function offers versatile installation options. Network connectivity allows you to remotely control and manage your projector and the 4x4-watt SRS WOW stereo speakers give your presentations powerful sound. The security bar and PIN lock guard against theft and unauthorized use. The PJ1173 is the full-featured choice for dynamic presentations and smooth video entertainment in large venues.