Automatic locking and unlocking touchpad door lock ensures your home is secure Add and delete up to 19 different user key codes Optional automatic re-locking setting turns on at the flip of a switch, locking the door five seconds after key code has been entered Touchpad is fingerprint-resistant to keep your codes secure Lever has a flexible, reversible design that fits on left or right doors Lock has an elegant and modern look that will not distract from any home decor Touch level door lock has been tested for strength and durability Suitable for indoor and outdoor use, lock can be placed on home or garage doors Lock is battery operated with a 2-year battery life (included)