Keyless Entry: Provide access to up to 20 unique password for your family or friends, and create temporary codes for guests to use. You can also use a key((Duplicable)) to unlock your digital lock. 5-minutes Easy Installation: Fits most American home front wooden doors. Quickly replace the handle, knob or deadbolt of your existing door lock set with just a screwdriver. No extra drilling needed. Reversible handle fit both left and right handed doors. Keypad Door Lock: Upgraded Backlit Keyboard with Low Battery Alert, silent mode and vacation mode,water resistant. Requires 4*AA batteries (Not Included), with a battery life of up to one year. Smart Locking Features: Set the auto-lock to lock in 5-99 seconds, and use the one-touch locking feature by pressing any keypad number for 2 seconds. Satisfaction Service: NICE DIGI smart lock provides reliable security and style. With a 30-day money-back, 1-year product coverage, and lifetime after-sales support, you can trust your investment is protected. Get the ultimate security solution for your home today!