SmartCode Contemporary Venetian Bronze Single Cylinder Electronic Deadbolt and Halifax Lever with SmartKey SecurityThe SmartCode touchpad electronic deadbolt is a one touch locking motorized deadbolt. With your personalized code, you can enter your home with the convenience of keyless entry and the back lit keypad provides increased visibility. SmartCode is easy to install, program and use, and operates on 4 AA batteries. It also features SmartKey Security as the back up keyway. This single cylinder deadbolt can be locked or unlocked by using the keypad or key