The four buttons can copy four different chip types each. This remote control can control four types of structures, saving you a lot of money. Using radio frequency technology: long-distance transmission, no direction, high-sensitivity transmission, no signal blocking. 433 MHz, transmission range 50-100 m (open space). This offers you a new remote control experience and great convenience in your daily life. High-precision copying and high copy efficiency, easy to install and use. 4-channel radio control for cars, car roofs, garage doors, gates, alarm systems, heating systems, home automation, etc.