Four programmable buttons for copying up to four different remote controls, enabling control of multiple doors or devices with a single key fob.Works on the widely used 433MHz RF frequency, providing stable signal transmission and broad compatibility with many garage doors and gate openers that use this frequency.Ideal for electric garage doors, lane gates, parking barriers, rolling shutters and other electric access control systems that support 433MHz remote operation.Simple learning process: copy the code from your original working remote directly to this remote, no additional programmer or tools required (system must support fixed code/learning code as applicable).Wireless convenience for seamless operation of multiple devices, enhancing user experience and accessibility.4-Key Copy Remote: Four programmable buttons for copying up to four different remote controls, enabling control of multiple doors or devices with a single key fob. 433MHz Wireless Transmission: Works on the widely used 433MHz RF frequency, providing stable signal transmission and broad compatibility with many garage doors and gate openers that use this frequency. Electric Garage Access Control: Ideal for electric garage doors, lane gates, parking barriers, rolling shutters and other electric access control systems that support 433MHz remote operation. Self Copy / Cloning Function: Simple learning process: copy the code from your original working remote directly to this remote, no additional programmer or tools required (system must support fixed code/learning code as applicable). Wireless Convenience for seamless operation of multiple devices, enhancing user experience and accessibility.Color: BlackMaterial: plasticPackage Contents:3*Garage door remote controlOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error i