What you are viewing is our Wireless 4CH Multifunctional Automatic to Code Relay Module with 2 Four Button Universal Remote Control AK-B1-DC12+C10 R002. With a high speed recording, the wireless relay module will give you full control over the doors.With this wireless relay module, you can automate and control a tremendous range of operations and add security, safety, comfort and convenience to your daily life. Adopt high tech, the automatic to code relay module offers you great performance, add its high quality material, provides excellent durability, reliable for last-long using! And with the universal remote control, it is easy to operate the automatic to code relay module.A must have for the safety of your property, do not miss it!
Other Thoughts:Keep one switch on my key chain and the other I attached velcro tape strips to and stuck it on the dash in an easy to reach location. I'm not really sure about the range but I can turn them on/off from inside my house so it works through walls.