Ever worry whether you remembered to close your garage door when pulling out of the driveway? With the Chamberlain MyQ Garage, you'll never have to worry again. Compatible with most major brands of garage door openers made after 1993, this smart box connects to the Internet over WiFi, and uses a sensor to tell if your door is open or shut. Which means you get the capability to open or close the door from wherever you are, receive alerts anytime the door opens, and even get a reminder if you forget to close the door when you leave. No more turning around to double check for you, Mr. Paranoid.