Provides trusted, convenient walk-in access without using a remote control or key. Set up in seconds with easy-to-follow wireless programming and compatibility with nearly every Chamberlain®, LiftMaster®, and Craftsman® garage door opener installed in North America. Advanced features such as a one-touch close button for efficient exits and a temporary PIN that can be programmed to allow limited-time access for deliveries or guests. Security+2.0®, the highest level of encryption, prevents hacking and provides peace of mind. Includes 9V battery and instruction manual.