The LW820ST WXGA 3600-Lumen Short-Throw Laser Projector from BenQ uses BlueCore Laser technology to deliver high color performance. It has a brightness of 3600 ANSI lumens and a contrast ratio of 100,000:1. This projector has a manual focus lens that supports a throw ratio of 0.52:1.This projector features two HDMI ports (one with MHL), two VGA inputs, RCA composite, and S-video inputs. There are 3.5mm audio input and output jacks along with a 10W built-in speaker. A 9.8' power cord, a remote controls, two AAA batteries, and a 5.9' VGA cable are included. A wireless display, PW02/PT12 interactive module, and dust filter are available separately.