This is a fixed and roling frequency remote cloner (433.92mhz) for copying 99.99% common fixed and learning code remote controls.Compatible with Most Chips: these 433Mhz automatic sliding gate opener are compatible with 2264, 2260,1527, FP527, 2240, SMC918, and so on; Please confirm your chips whether suitable before orderingEasy to Duplicate: after removing the old code, you need to put the universal gate controller, remote control side by side, and press a button, then press the corresponding button to copy the old remote control, LED indicator will flash 3 times to let go, and other corresponding keysClear the Old Code: press and hold the A and B keys on the automatic electric door opener at the same time until the LED indicator flashes continuously before releasing; You can press any key to test, if the LED indicator flashes instead of blinking all the time, it means the code has been cleared4 Keys to Control: there are 4 buttons on the remote controls for gates, A, B, C, D, are applied for opening, closing and stopping doors, which are convenient and practical; You can use them for rolling shutter doors, rolling shutter doors, telescopic doors, garage doors, road doors You Will Get: there are 4 pieces of universal remote gate openers (include battery and instruction book), equipped with lobster clasp, which can be hung around clothes, pants, bags, etc.Colour:Photo ColorMaterial:MetalPackage Contents:4 x garage door opener remote1 x English instruction manual