Epson BrightLink 710Ui WUXGA 3LCD Ultra Short Throw (UST) LASER V11H877022 ProjectorEnjoy out of the box interactivity with the Epson BrightLink 710Ui 4000 Lumen WUXGA Ultra Short Throw 3LCD Laser Interactive Projector. It includes an interactive module and two interactive pens and supports interactivity with up to eight users at once. It features support for wireless sharing to and from the projector for up to 50 compatible devices with an optional wireless module. Its 4000 Lumens of brightness and 2,500,000: 1 dynamic contrast