Description Specifications: Type: Remote Control Material: Plastic, Alloy Button: 4 Buttons Frequency: 433MHz The latest IC programming code to prevent accidental removal. 4-channel radio control machine for cars, car roofs, garage doors, gate doors, alarm systems, heating systems, home automation, etc. This is a fixed frequency remote 433MHz cloner for copying 99.99% common fixed and learning code remotes. Clones up to 2 remote signals from 2 different remote controls. How to Program: 1. Delete to the history code of duplicators. Press the A and B buttons continuously until the LED flash 3 times. Leave the B button (Hold down the A button), and press the B button slowly for 3 times, LED flash. Leave the A key to clear the code clearance. If code clearance is correct, briefly press any key. The light will not flash. If the light flashes, pressing briefly any button release process is done wrong. Please retry sharing process again. 2. Copy the code from the original station. Place the cloning remote control and the original remote control next to each other. Make sure they are touching. Press and hold a button on the original remote control and one of the buttons on the clone remote control until the remote flashes constantly on the clone LED. The blue LED will flash 3 times fast, then stop for a second, then steady flashes. Release both buttons. Programming is successful. Copy the other buttons in the same way. Package Includes 2xKey Fob(battery not included)