WUXGA (1920 x 1200) Brightness 4000 Lumens, Laser Light source , contrast ratio over 2,500,000:1, Lamp Hours (stand/Eco) 20000hr / 30000hr, Keystone Correction Vertical/ Horizontal +/- 3 degrees, Sound Output 16 W, Throw Ratio (Wide-Tele) 0.27 - 0.37, Diagonal Screen Size/ Distance ( Standard Lens) 70" at 40.5cm, Computer Input (D-sub 15pin) 1X, 1X Monitor input 1X RS-232C 1X HDMI 3X (1 MHL) Wired LAN (RJ45) 1X Wireless Optional (ELPAP10) USB Type A & B Start Up period 9 Sec Cool Down Period Instant Off Dimension (DxWxH) 437 x 494 x 172mm Weight approx. 11kg USB Display 3-in-1 (Image, Audio & Control; Mac OS compatible) Easy MP Network Projection Yes Features "Ultra Short Throw Portrait Projection Auto Brightness Adjustment Multi PC Projection Split Screen Quick Corner