Product Function: [Remote control] The remote control copies the signal from the original remote control. Therefore, the original remote control must be present! More control and safety Adjustable operating mode, on/off. Momentary/toggle/latch switch. All remote control kits support 433 MHz frequency. The learning code has a low repetition rate and relearn mode, high security, when the remote control is lost, the old code can be erased and the new one can be relearned, so you can control it at any time. Features: Long distanceSmall size, stable and reliable, transmission distance 100-150m (open space), brand new remote control experience, makes your daily life more comfortable. Simple and flexibleHigh copy accuracy, high copy efficiency, fast data copy speed, no code loss, easy installation and use. Wide ApplicationDesigned to control various electronic devices via wireless signals. Applications range from simple household remote control to standalone control, ideal for RV LED floodlights, remote flame triggers, driveways, garage doors, alarm systems, security equipment such as lifting equipment and more again. Package contains: 4pcs garage remote control Main points: 1. The product size is measured manually, there may be errors 2. Since different monitors display different colors, please refer to the actual color you received. 3. Please confirm the size before purchasing.