This is a 433.92MHZ remote control for garage door. The transmission distance is between 50 and 100 meters (open space). Open doors and garage doors without getting out of your vehicle for a new remote control experience and a lot of convenience in everyday life! Universal Portal Remote - Enjoy a better life! < strong>It works on 433.92 MHz. Different frequency beeps are not compatible. Easy operation and adaptability. wide, in the bottle truck, garage door, lane door ban, auto parts modification field can be applied. 01 all kinds of doors electric, electric garage doors, passage doors, security monitoring 02 vehicles, copy of the remote control for motorcycles and electric vehicles. electric 03 home stage applications, light fixtures, projection curtains, electric doors and windows 04 agriculture application copy cranes, sprayers, pumps; remote control water, etc. [How to activate] 1. Erase first Hold down the two buttons of the remote control at the same time until the light flashes