Simply enter your personalized access code for convenient keyless entry. Powerbolt is easy to install, program and use. And the motorized driven deadbolt allows for one-touch locking. Powerbolt innovated the keyless entry technology over 10 years ago and has stood up to the test of time. Finish: Satin Nickel Fits standard deadbolt door prep Touch pad accept two 4-8 digit entry codes No wiring necessary Requires 4 "AA" batteries not included Smartkey re-key technology as the back-up keyway Installs with phillips screw driver.