Four Programmable Keys: Equipped with 4 buttons, allowing you to control up to four different devices such as garage doors, sliding , swing , shutters, or security barriers with one compact remote Universal Cloning Function: Supports cloning of rolling code and fixed code remotes from many popular , enabling you to quickly copy your original remote signal and create a reliable backup controller Specifications: Due to different batches, there may be differences in product appearance and printed text, which not affect use Wide Frequency Range: Compatible with 280-868MHz systems, this remote control duplicator works with a broad variety of electric garage door openers, gate operators, barrier systems, and door access controllers This remote control duplicator is designed for convenience and versatility, making it an essential tool for managing multiple access points efficiently., Manufacturer: Littimoon