Compatibility – This remote can copy 99% of fixed code or learning code, but cannot copy rolling code. Supported chip codes are shown in the product photo or documentation. Latest RF Technology – A radio remote control that transmits and controls signals through radio waves. Offers non-directional operation and long transmission distance. The latest RF technology ensures improved signal transmission range. Protective Design – Features a sliding cover to prevent accidental button presses when storing the remote in a pocket or bag. A blue protective film is applied to help protect against scratches. Multi-channel – Equipped with 4 buttons (A, B, C, D). Each button can be programmed to operate a different brand of remote-controlled device, allowing control of up to 4 devices. Easy to Use – Includes a programming manual with clear instructions for code erasing, copying, and restoring. Simple to follow and operate without complicated procedures.