Features: *The four buttons could respectively copy four different types of chips, that is a remote control can operate four different types of facilities. *Wireless remote control duplicator, duplicate your existing remote controllers for cars, car sunroofs, garage doors, gate doors, heating systems, home automation e.g. lighting and etc. *315MHz,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, faster copy data speed, not easy losing code,easy to install and use. *Ultra-small error of copying data code and copy oscillation resistance. Privacy is strong.