Optoma HD141X 1080p 3D DLP Home Theater Projector (Manufacturer Refurbished) Screen Size Range: 66-inches from 8 feet; 107-inches from 12 feet 3000 ANSI Lumens Contrast Ratio: 23,000:1; 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