Optoma GT1080 1080p 3D DLP Gaming Projector (Certified Refurbished) Screen Size Range: 111-inches from 4 feet; 166-inches from 6 feet 2800 ANSI Lumens Contrast Ratio: 25,000:1; Keystone Correction: Yes, Lens Shift: No 90-Day Limited Warranty on Projector and 30-Day Warranty on Lamp Two HDMI v1.4a, 3D VESA, audio-out, USB mini-B, 12V trigger