IMPORTANT NOTE: Only suitable for 433.92MHz fixed code and learning code remote keys. It is a replacement and not an original accessory. Only available on listed models and frequencies, not available on other models or frequencies. Note: Please check carefully whether the frequency is the same before purchasing. If you can't match it or don't know how to use it after purchase.Flexible Garage Key: This is a fixed frequency replicator designed to replicate common fixed codes. Button with 4 programmable command switches for duplicating up to 4 remote signals. This means you can port the functionality of multiple remotes to one, making life easier.Easy to pair: There are three conditions to confirm before purchasing. 1) The original remote control works normally; 2) The frequency should be 433.92MHz; 3) The chip coding (encoder chip) is the same: 2260 (all manufacturers); 2262 (all manufacturers); all manufacturers); HCS10, HCS200HCS201 ( Part code), HCS300HCS301 (Part code), some microcontrollers, etc.Compact and Portable: Convenient keychain that easily attaches to your car keys. Slide protection prevents accidental button presses. (The reasons for failure to copy may be: The battery of the garage remote control is low or the battery is damaged; The signal transmitter is damaged; The receiver is damaged; The garage door power cord is damaged and disconnected; The garage door receiver and remote control signal transmitter The device is too far away.)Wide range of uses: Garage door remote controls are suitable for cars, garage doors, doors, skylights, car/motorcycle alarm systems, home security products, short-range wireless remote control products, electrical appliances/home automation lamps, industrial control products, etc.