"Acer BS-312PP - DLP 3D ; 1 x HDMI - 19-pin HDMI type A ¦ 1 x VGA input - 15-pin HD D-Sub (HD-15) ¦ 1 x USB - 4-pin USB Type A ¦ 1 x audio line input ¦ 1 x composite video input - RCA ¦ 1 x VGA output ¦ 1 x audio line output;WXGA (1280 x 800) (native) / 1920 x 1200 (changing proportions)- Contrast Ratio 20,000:1 - Lamp Type OSRAM ; Standard Mode Brightness 4000 lm - Up to 6000 hour (s) - normal mode ¦ Up to 7000 hour (s) - economy mode ¦ Up to 1000 hour (s) - extreme saving mode- Speaker mono 3 w Weight 2.80 kg;Projection distance 1 m - 10 m"