The ViewSonic PJ557D DLP projector features 2,200 lumens, native 1024x768 resolution, ultra-high 2000:1 contrast ratio (typ) and Brilliant Color for precise images in virtually any setting. This full-featured projector includes Multiples Inputs for connecting a computer or video source, dual 5-watt speakers for complete multimedia presentations, Vertical Keystone Correction for easy image adjustment and Direct Off Feature. Choose from whiteboard, blackboard or greenboard mode for the best picture on your projection surface. Eco-mode extends lamp life and reduces fan noise as low as 34dB. Protect your projector from theft and unauthorized use with the Kensington security port and PIN lock password. This projector is perfect for multimedia classroom lessons and corporate presentations.