Set of 2 Universal Replacement Remote Controls for 433 MHz Electric Garage Gate

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