General description The 6 Pcs Universal 4 Key Buttons Garage Door Opener Remote Control Duplicator is a versatile device that allows you to clone up to 4 remote control buttons from the same or different remotes. This means you can carry multiple remote controls in one compact device, making it an efficient solution for managing various remote-controlled devices. Technical specifications Frequency: 433 MHz Material: Plastic + Metal Color: Multicolor Package Contents: 6 Garage Door Opener Remote Controls Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with electric doors, retractable doors, garage doors, motors, curtains, cars, and motorcycles. Usage Easy to copy existing remote controls in just a few minutes. Each button (A, B, C, D) can be programmed to open different remote keys. Provides a backup remote control in case the original is lost. Other information High copying accuracy and efficiency. Intelligent copying feature to enhance work efficiency.