Wide Application: Can make copy, copy type roller shutter wireless remote control, widely used in various door and window controllers and other industrial control, anti theft alarm, smart home and more. Durable Construction: The button and metal frame adopt plating process, which will not fade after long term use, resistant to high temperature, and the Abs shell is not easy to damage. High Performance: The garage door opener learning code key has high acceptance sensitivity, strong anti interference ability, narrow bandwidth, long receiving distance. Practical: Strong privacy, one to one key copy, each key password will save alone. Copy any fixed code remote controller, save the trouble of replacing specified remote controller. Coding Chips: Adopts standard copy remote control coding chip, supports copy function, and has the function of copying remote control and can be used alone. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.