Kebidumei 433MHz Copy Remote Control Fixed Rolling Code Cloning Code Duplicator Door Opener

Memory clearance
1.Press button 1 and 2 simultaneous until LED flashes 3 times
2. Release button 2 (Keep pressing button 1), and press button 2 slowly for 3 times, LED flashes quickly.
3. Release both button, the duplicator is ready for copying
Duplicating
Put duplicator aside of original transmitter, as close as possible.