The X316ST XGA Full-3D Short-Throw Projector by Optima will impress any audience in your meeting room or classroom with its built-in speaker, networking capability, Full 3D technology, optional wireless capabilities, long lamp life and energy saving features. The resolution is 1024 x 768 and the contrast ratio is 20,000:1. It features whisper quiet operation and 3,400 lumens with a lamp life of up to 8,000 hours when using the Education Cycle.