ASTHA AH-K400 3LCD Business Education Projector, clear images in your room with 3300ANSI Lumens XGA of brightness can overcome ambient light in most room settings, while its 20,000:1 dynamic contrast ratio can help ensure discernible detail in most images. The projector's native 1024x768 resolution is suitable for most video and file formats, composite video, and two HDMI inputs to support most input types. Aspect Ratio: 4:3/16:9, keystone: V: ±30° Manuals, Distance: 1.13-10.86m Distance, Ultra Short Throw, Throw Ratio: 4:3/16:9, , It is controllable via Ethernet, the included IR remote control, or various control software options.