Buy from Amazon : br ViewSonic PJD5223 XGA DLP Projector - 2700 Lumens 3000:1 DCR 120Hz3D Ready Speakerbr br XGA 1024x768 DLP projector 2700 ANSI Lumens 30001 Contrast 11x Optical Zoom Lens br Throw Ratio 1972171 Multiple inputs Dual RGB in composite s-video RGB out audio inout RS232 Supports HD 720p and 1080ip br 120Hz3D-ready Digital keystone correction - 40 2 Watt Integrated Speaker br Portable 57 lbs weight Lamp life 50006000 NormalEco Apple Mac compatible br 8 preset picture modes including bright cinema whiteboard etc Eco Mode for energy savings longer lamp life and reduced operating noise br 8 preset picture modes including bright cinema whiteboard etc Eco Mode for energy savings