4-in-1 remote control duplicator: A compact, cost-effective device designed to duplicate 433 MHz remotes for garage doors, car keys, gate operators, and other compatible remotes. It helps reduce the number of remotes you need to carry. High security: The infrared link uses data encryption for added security when operating your garage door or car access, minimizing the need to carry multiple keys. Note: Color or cosmetic differences do not affect functionality or performance. Easy to use: The 433 MHz 4-in-1 remote control duplicator is quick to copy and pairs with portable high-frequency keychains in minutes. It provides stable remote operation with a working distance of 50-100 meters (about 54.7 yards). It serves as a replacement for multiple remotes, enabling you to control garage doors, retractable doors, barriers, and parking locks. Use scenarios: - Home simplification: Duplicate your garage door remote and gate remote to a single device, reducing clutter and the number of remotes you carry. - On the go: Copy vehicle remotes for rentals or temporary access, making it easier to access doors without extra keys. - Property or fleet management: Maintain spare copies for staff, maintenance teams, or service vehicles to ensure quick access across multiple entry points.