Features: *Wireless remote control duplicator, duplicate your existing remote controllers for cars, car sunroofs, garage doors, gate doors, electric doors and windows, heating systems, home automation lighting and alarm system, etc. *Up to 4 different remotes in 1, every button can be programmed as a replacement for a different brand, so using only one transmitter you can control up to 4 devices from different producers. *433MHz, transmit distance is 50-100m(Open space), bringing you new experience of remote control and much convenience in your daily life. *High accuracy of copying and high effective of copying, easy and convenient to operate. *Ultra-small error of copying data code and copy oscillation resistance. Privacy is strong.