Specifications:Type: Remote Control Material: Plastic, AlloyButton: 4 ButtonsFrequency: 433MHzThe 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. % common fixed and learning code remote controls. Clone up to 2 remote signals from 2 different remote controls. How to program: 1. Delete the historical code of the duplicators. Press the A and B buttons continuously until the indicator light flashes 3 times. Leave the B button (hold down the A button) and slowly press the B button for 3 times, the indicator light flashes. Leave the A button to clear the code authorization. If the code authorization is correct, short press any key. The light will not flash. If the light flashes, short press any button release process is done wrong. Please try the sharing process again.2. Copy the code from the original station. Place the cloning remote control and the