1/2 Pcs Universal 433MHz Remote Control 4 Channel Garage Door Remote Control for Garage Door Electric Gate

【4 in 1】: the four buttons can copy four different types of chips. With this remote control, you can operate four different types of facilities, saving you a lot of money. High sensitivity: use of high-frequency technology, transmission distance, no direction, high sensitivity transmission, no signal blocker. 【On long removal】: 433 MHz, transmission distance is 50-100 m (open space), which brings you new experiences with remote control and much convenience in your daily life. High effect of copying: high copy accuracy and high copy efficiency, easy installation and use. Wide application: 4-channel radio control machine for cars, car roofs, garage doors, door doors, alarm systems, heating systems, home automation, etc.