Compatible with most LiftMaster, Chamberlain, and Craftsman garage door openers manufactured since 1997. Ideal replacement for models 891LM, 893LM, 890MAX, 971LM, 973LM, 371LM, 373LM, 81LM, and 83LM. To confirm compatibility, check your opener's learn button color before . Features advanced Security+2.0 rolling code technology to protect against code theft, ensuring secure and dependable garage access every time you use it. Designed with a slim, lightweight profile that fits easily in your pocket or attaches to your keychain, making it convenient to carry without adding bulk. Reliable performance with an operating range of up to 120 feet from your garage door opener, allowing quick and responsive open and close functions without delay. Includes a preinstalled CR2032 battery for immediate use right out of the package. Practical uses: Keep one on your keychain for daily access to your garage while arriving home or leaving for work. Store an extra in your car or truck for convenient access without having to rely on the wallmounted control. Use as a backup remote to ensure you can always open your garage, even if your primary remote is misplaced or damaged.