Liftmaster 877MAX Remote Keypad Open or close your garage door without using a remote control or key. Holds four unique PIN codes, and users can control up to four Garage Door Openers. Easily syncs to your existing openers frequency with single manufacturer/single frequency design. Protected from the elements with a weatherproof slide-up protective cover. Easily read the backlit numbers on the keypad day or night. Offers a one-button-to-close feature, making it easier than ever to close your garage door (works with all LiftMaster Garage Door Openers manufactured since 2006). Compatible with all LiftMaster Garage Door Openers manufactured since January 1993. Completely wireless designpowered by one 9-volt battery (included).