You take extra care to make sure your home is secure, so why not get this same peace of mind from the knowledge that your garage is safe, as well? The Keyless Entry Transmitter mounts on the wall of your garage and works with the Garage Door Receiver (sold separately) 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 # Transmitter # Instructions # Clip # Mounting materials # Lithium batteries Programming the Keyless Entry Transmitter is simple; just align the codes to match those on the receiver module, and it will automatically send a wireless signal to the Garage Door Receiver when you enter your identification code. Batteries are included, so you're ready to use this handy device as soon as the receiver is plugged installed. The Keyless Entry Transmitter and Garage Door Receiver are also available to be purchased as a set. For easy garage access without exiting your car, clip a Keychain Transmitter (sold separately) to your key ring. You'll be able to access your garage with the push of a button.