Genie's Universal Garage Door Opener Keypad is a system for easy access to your garage without the need for a remote or a garage door opener remote. The Genie Universal Keypad is designed to work with nearly all manufacturers of garage door openers in the USA; to include Genie, Ryobi, Chamberlain, LiftMaster, Craftsman, Marantec, Linear, Stanley, and many more. This universal garage door keypad comes with the security of Genie's technology built in. The initial setup is easy and takes only 2 minutes to complete. The keypad features a flip-up cover to protect the keypad from the elements and lets you control up to 3 garage door openers. The keypad features a back light, which means you can easily see to enter your code even at night. A tone sounds with each button press to let you know your entry has been received. The included x2 AAA batteries are easy to change. Genie Dual Frequency technology in the universal wireless keypad helps to ensure the opener will respond regardless of possible nearby frequency interference. If your garage door opener did not come with a keypad this is a quick and easy upgrade that can be added to nearly any garage door opener.