This product does not work very well. I installed it in two different houses, on three different computers, tried all the fine tuning options, chanels, and troubleshooting tips in the manual. And it never looked even close to good.This device adds a good bit of static and interference to the video and audio. (yes, i unplugged my wireless router and cordless phones....) It even makes your monitor look fuzzy. At the advice of one of the other reviews I saw here, I even tried a different vga cable. The vga Y cable they include seems to increase the issues. With a different cable, its slightly better but not quite usable. If you plan to use your computer on the television (or just read documents), forget it. Text is so bulry its very hard to read.If all you want to do is stream a movie to your tv... And you don't mind some static... then this might work for you.