Universal Remote Control For Electric Garage Door Opening, 433 Mhz

The four buttons can copy four different kinds of chips respectively, it is a remote control can operate four different kinds of facilities, helping you save a lot of money Using the technology of radio frequency, transmission distance, no direction, high sensitivity transmission, no signal blocking 433MHz, 50-100m transmission distance (open space), bringing you a new experience of remote control and much convenience in your daily life High precision copying and high copying efficiency, easy to install and use 4 channel car radio for cars, car roofs, garage doors, gate doors, alarm systems, heating systems, home automation, etc