Chamberlain 975LMC is a laser parking assist that can be installed on or near the ceiling of your garage. It uses a laser beam to help you park your car in the same spot every time. The laser beam can be adjusted to point to a specific location on your dashboard or hood, so you can easily see it while you're driving. The parking assist is NOT a substitute for safe parking practices, but it can help you to park your car more accurately and quickly.