Features: *300-915HMz (315/433/868/915HMz, etc.) copying transmitter: duplicate your existing remote controllers for cars, garage doors, gate doors, electric doors and windows, home automation lighting and alarm system, etc. *Easy to use, the 4 channel remote control key fob lets you easily copy most remote control fobs. *4-Channel RF wireless remote control duplicator for garage doors, cars, gates any fixed code system on 300-915HMz (315/433/868/915HMz, etc.) frequency, bringing you new experience of remote control and much convenience in your daily life. *High accuracy of copying and high effective of copying, easy to install and use. *Four colors optional (Red/Green/Blue/Yellow).