This wireless remote control is 433MHz frequency commonly use for Autogate, Garage door opener Users just need to open the back case and adjust 8 DIP switch according to existing old remote control to use. Specification: Frequency: 433MHz Chip code: Fixed Dial Code SMC5326 Voltage: DC 12V Current: 12mA Transmit distance: Open Space 100m Dimension: 55*33*16mm(.) How to Copy Your Remote Control: Open the Original Remote Controller casing Refer to the 8 DIGITS adjustable switches Open the New Remote Controller casing Adjust the 8 DIGITS switches to be exactly the same with the Original Remote Controller Now your key is successfully duplicated! Color: Black Material: plastic Package Contents: 1*433MHz Garage door remote control Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.