Projection Technology RGB liquid crystal shutter projection systemWhite Light Output (Normal/Eco) 3,300lm / 2,050lmColour Light Output 3,300lmUSB Interface USB Type A : 1 (for USB Memory, USB Document Camera, for Wireless LAN Unit, Firmware Update); USB Type B : 1 (for USB Display, Mouse, K/B, Control, Firmware Update)Analog Input D-Sub 15pin 1 (Blue molding); Composite RCA x 1 (Yellow) Digital Input HDMI : 1 (MHL not supported) Audio Input 2 RCA (White / Red) : 1Contrast Ratio 15000 : 1Standard Size 60” screen 1.8 - 2.17 mZoom Wide : 30” - 300” [0.89 - 9.12 m]; Zoom : Tele : 30” - 300” [1.07 - 10.95 m]Vertical/Horizontal Keystone ±30° / ±30°Auto Keystone Yes (Vertical only)Horizontal Slide Keystone Correction YesQuick Corner YesOperating Temperature 5 - 35 °C <41 - 95 °F> (0m / 0ft - 2,286m / 7,500ft); 5 - 30 °C <41 - 86 °F> (over 2,286m / 7,500ft); (20% - 80% humidity, No condensation)Operating Altitude 0 - 3,000 m <0 - 9,843 ft> (over 1,500m / 4,921ft : with high altitude mode)Start-Up Period About 6 seconds, Warm-up Period : 30 secondsCool Down Period Instant OffSound Output 2W MonoDirect Power On/Off YesDimension Excluding Feet (W x H x D) 302 x 77 x 234 mm Weight Approx 2.5kg