ViewSonic PRO9500 XGA 1024 x 768 High Brightness LCD Installation Projector - 5000 lumens, 3500:1 DCR, network and USB display, 16W Speakers 1024 x 768 XGA resolution, 5000 Lumens, 3500:1 DCR,1.7x Optical Zoom Lens, Horizontal and Vertical Lens Shift, Wider Throw Ratio (1.5 - 2.5:1) Multiple Display Options Including HDMI, RGB, BNC, Component, Ethernet (RJ45) and USB, USB Port For Plug- and -Play Display and PC-Less Slideshow Presentation Network Display & Management with Included LiveViewer Software, Get Double Lumens For Stacking Dual Units Up To 10,000 Lumens Microphone Input For Use With Integrated 16W Speakers, Lamp Life: 3000/5000 hrs (N/Eco) Eco Mode For Energy Savings and Longer Lamp Life, Remote Control With Batteries Included