20-100 inches max projection sizewhich size you want is depend on you.</br>More than 1000:1 contrast ratiowhich make the image clearly and smoothly.High native resolution 800*480 color reproduction technology.</br>High-definition glasses lenses makes colorsaturationdynamic contrast ratio highter.</br>Multiple alternative interfacesupport the major formats.</br>You can enjoy the movie Sports competitions with your friendplay the game at the big screenit will be great choose for you to make a colorful life for you and your family.</br></br>Product Description</br></br><p><b>Optical Parameters:</b> <br>Technology Type: Single LCD Projection Technology <br>Physical Resolution: 800*480 Pixels <br>Maximuum Resolution: 1920*1080 HD 1080P <br>Brightness: 120 Lumens <br>Contrast Ratio: 1000:1 <br>Aspect Ratio: 16:9&4:3(native) <br>Displayable Color: The horizontal(1.67 millions) <br>Projection Method: FrontRearHanging cast <br>Projection Lens: Manual Focus <br>Keystone Correction: Automatic ?15o</p> <p><b>Optical Elements:</b> <br>Shot Size: 30-100 inch <br>Projection Distance: 0.9??3M <br>Lighting: 48W LED B