Viewsonic (SP6) 4800 Lumens XGA Business Projector, Speaker, 3Y - White 4800 ANSI Lumens XGA (1024 x 768) 1.96 to 2.15 Throw Ratio 5 Color Modes Auto Power Off Vertical Keystone Keypad LED Indicator Zoom and Focus Security Lock IR Sensor Kensington Lock Slot Contrast Ratio with SuperEco Mode 25,000:1 190W Lamp Image Size between 30" and 300" Throw Distance between 1.19m and 13.11m 2x VGA Input; 1x VGA Output; 1x RS-232; 1x HDMI; 1x MiniUSB; 1x 3.5mm Audio In; 1x 3.5mm Audio Out 2W Speaker Audible Noise 31dB (Normal) 27dB (Eco) 2.2kg 3 Years Projector Official Warranty / 1 Year Lamp Official Warranty