A garage door opener is an electronic device that can open and close the standard garage gate, typically controlled by brushes on the gate. Garage gates are designed to open by a push of one button, while a garage gate closer is used to close a garage gate when the door doesn't respond to the automatic pull chain mechanism. The majority of garage gate closers include an emergency key, a thumb turn key, or a small coin clip to prevent the key from being pulled out of the system. The garage circuit that controls garage gate closers is installed within the garage. Most come with an handheld remote control to make it easy to control the gate. It can be used to open and close the gate from a short distance away.