Native Aspect Ratio 4x3 Technology DLP, SVGA Lumens (Eco/High) 3800 ansi Contrast 30.000:1 cable boxes, dish services and more (over HDMI) and PC-based 3D content at 120Hz. 144 Hz DLP Link 3D glasses required. Closed Captioning Yes Speakers 2W (1 x 2W) Audible Noise (Eco/High, dBA) 30/32 Keystone 40 Lamp Hours (Eco/High) 15.000 Connections HDMI x 1, VGA in x1 , Composite video, S-Video, 3.5 mm stereo in x 1, 3.5mm stereo out 1X USB A