Thanks for visiting! This Universal Remote Control could be complemented with 12V 4 channel multi-function remote control switch, 220V 4 channel remote control switch and 86 remote control switches. Wireless 4 Channels Multifunctional Automatic to Code Relay Module with 4 Four Buttons Universal Remote Control AK-B1-DC12+C2 R004. Apply to Home and Store alarm System; Electric motor car, automobile, motorcycle alarm device, each kind of windows and doors controller and other industrial control. This Best Universal Remotes characterized as stable performance, small size and high receiver sensitivity. Mainly used in the field of industrial control and security surveillance. So what are you still waiting for?
Other Thoughts:No problems with the function of this item. However, the buttons are too small, a problem that could easily have been addressed in the design of the product. But it was cheap, and it did what it was supposed to do.