The OPTOMA's W335 3800 lumen WXGA DLP projector provides brilliant images and strong dynamic contrast. The projector's basic 1280 x 800 resolution clearly shows data and images at various viewing distances, and its 1.55 to 1.73:1 throw ratio allows user to set the projector reasonably far away from the screen without losing focus. For connecting a variety of source devices, the W335 has HDMI, VGA, and RCA composite video ports. A VGA output lets user daisy-chain the video feed to other projectors or screens, and an analogue audio input and output, as well as a built-in speaker, let user to add sounds on movie.