PowerLite 680 Projector Aspect Ratio: 4:3 Contrast Ratio: 14,000:1 Display Colors: 1.07 Billion Features: Bright and Colorful Features 3500 lumens of color brightness (color light output) and 3500 lumens of white brightness (white light output). XGA Resolution 1024 x 768 resolution Ultra-Short Throw Projector Can be mounted only 11 away from the board for a projected image as large as 92 diagonal - with no shadow interference. Split Screen Display content from two inputs simultaneously, side by side, on a single screen. Speakers Included Includes multiple, built-in speakers for lifelike sound USB Plug 'n Play Instantly project images from a PC or Mac using a USB connection. Power Supply: 100 - 240V +/-10%, 50 / 60Hz Power Consumption: ECO mode: 324W Normal mode: 373W Communication on: 2.2W standby Communication off: 0.23W standby...