Built-in picture skew sensor - automatically analyzes the picture and instantly corrects the vertical keystone to help square the imageAmazing dynamic contrast ratio up to 16,000:1 - provides crisp, rich detail for graphs, images and videosAward-winning service and support - standard 1-year limited warranty, full-unit replacement, along with free technical phone support for the life of the productEco FeaturesRoHS compliantRecyclable product3Epson America, Inc. is a SmartWay Transport Partner4 Better Products for a Better FutureFor more information on Epson's environmental programs, go to eco. epson. com. Epson Pro EX9240 3LCD Full HD 1080p Wireless Projector with Miracast.