Image adjustment: automatic vertical keystone correction for perfectly aligned images Projection mode: flexible installation in front of or behind the screen on a table or on the ceiling. Projection distance: at a distance of 1.00 - 11.80 m 3D function: create your 3D home cinema immediately immerse yourself in the cinema experience with 3D DLP glasses a 3D player such as PC or 3D Blu-ray player Connectivity options: 1x HDMI (1.4a), 1x USB Type A (DC Out 5V), 1x VGA/D-Sub, 1x Composite Video, 1x Audio in jack (3.5mm), 1x Audio Out, 1x D-Sub Out (image output), 1x RS232 OPTIONAL: Find out about optional wireless products in the accessories table at the bottom of the page. So you can enjoy your cinema experience wirelessly