Protect the important belongings you store in your garage with the Wireless Keyless Entry System, which requires a personal access code to trigger your automatic garage door opener. The transmitter easily mounts on the wall of your garage and alerts the receiver to send a signal to your automatic garage door opener when you enter your personal access code. The backlight comes on and a beep is emitted when any key is pressed, so you'll know when the signal is being transmitted. What's Included # Receiver # Transmitter with battery # Clip # Instructions # 20-foot red/black wire The receiver is easy to install. Connect the stripped ends of the included wire to the two terminals on the back of your wall-mounted door control, and plug the connector end into the receiver. That's it! With an access code in place, all of your family members will be able to gain entry to your garage. There is also no limit to the number of transmitters that can control the Garage Door Receiver, so you can even provide family members with Keychain Transmitters (sold separately) for access they can bring along with them.