WOIYIC 433.92 MHz Universal Gate Remote Control, 4-Channel Garage Door Remote Control, Fixed Code Duplicator Remote Controls (2 pcs)

Compatibility -- This remote can copy 99% of fixed or learning codes, but cannot copy rolling codes. Supported chip codes are shown in the product photo or product description. Latest RF Technology -- A radio remote transmits and controls signals via radio waves. Non-directional and long transmission distance. The latest RF technology ensures a better transmission range. Protective Design -- The sliding cover prevents accidental button presses when you keep the remote in your pocket or purse. A blue protective film is attached to the remote to protect it from scratches. Multi-Channel -- There are 4 buttons (ABCD keys) on the handheld transmitter. Each button can be programmed for 4 different brands of remotes. This means this remote can control up to 4 devices. Easy to Use -- The programming manual contains the operating steps for erasing, copying, and restoring codes. The manual is easy to follow and use. You don't have to worry about overly complicated procedures.