If you have a Garage Door Closer set up to shut your garage door automatically, you can also trigger your garage door opener automatically using a Keychain Remote. This handy 4-button device hangs on your keychain and can open or close your garage door with a single button press. Since the Keychain Remote features additional buttons, you can also trigger any other Skylink AAA+ security device from the same remote. The Keychain Remote for Garage Door Closer has a rang of up to 100 feet, and a 12-volt battery is included. What's Included # Keychain Remote # Instructions # 12-volt lithium battery