General description This is a universal fixed frequency (433.92 MHz) garage door remote control, designed to duplicate common fixed code remote controls and learning functions. The small key ring can be easily hung on the car key for easy carrying. It directly replaces old or damaged original parts and features buttons equipped with sliding covers to prevent accidental opening or closing. Technical specifications Frequency: 433.92 MHz Number of buttons: 4 Installation Steps to clear the code: Press and hold the A and B buttons simultaneously until the LED indicator flashes three times. Release the A button while keeping the B button pressed, then press the A button three times. The LED indicator will enter a fast flashing state, indicating that all memory data is cleared. Steps to copy the code: Hold the original remote in one hand and the copied remote in the other. Place the two remotes side by side on a desk, close to each other, and simultaneously press the buttons you want to