This is a 433.92MHz frequency remote cloner designed to copy most common fixed and learning code remote controls. Compatible with various chip models including 2264, 2260, 1527, FP527, 2240, SMC918, and others. Please verify your chip type before ordering. Easy to duplicate: After clearing the old code, place the universal gate controller and the original remote side by side. Press and hold the corresponding button on both remotes simultaneously. The LED will flash three times to indicate successful copying. Repeat for other buttons as needed. Clear the old code: Press and hold keys A and B on the automatic electric door opener until the LED flashes continuously, then release. Test by pressing any key; if the LED flashes briefly instead of blinking continuously, the code has been cleared. 4-button control: Features four buttons (A, B, C, D) for opening, closing, and stopping gates or doors. Suitable for use with rolling shutter doors, telescopic doors, garage doors, and barrier gates. Color: As shown in photo Material: Metal Package Contents: 4 x Garage door opener remotes (batteries included) 1 x Instruction manual in English Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.