General description The Set of 3 universal remote controls for automatic doors operates at a frequency of 433MHz and features a fixed code. With 4 buttons, this device can memorize up to 4 different radio control codes, making it ideal for various applications such as garage doors, entrance doors, alarm systems, heating systems, home automation, and lighting. Technical specifications Frequency: 433MHz Number of buttons: 4 Memory capacity: Up to 4 different radio control codes Other information The kit includes: 3 x universal remote controls Note: The other items in the picture are props and are not included Dimensions may have an error of 1-3 cm due to manual measurement Color may vary slightly due to different monitor calibrations