3-in-1 Convenience, Peace of Mind Security. Unlock your way with fingerprint, keypad, or key. For added security, the door automatically locks after 5 seconds of inactivity. You can also lock it instantly with a press of the enter key. Built-in Anti-Peep technology lets you scramble your passcode with random numbers, keeping your entry code private Unlock Your Door in a Flash. Advanced, Lightning-fast fingerprint recognition puts convenient and secure keyless entry at your fingertips. With its built-in intelligent learning capabilities, the more you scan your fingers, the faster you can unlock and the more accurately it recognizes your fingerprint ID DIY Friendly & Effortless Setup. Upgrade your security in minutes following the 4-step installation using a Philips screwdriver. This keyless door lock fits most US doors. Using 4 x AA Alkaline batteries (NOT included) from a well-known brand could provide up to 1 year of battery life. If the battery runs out, you can connect your power bank to the Type-C port located on the bottom to power it on, or use backup keys to unlock Easy Programming with Innovative Keypad. Manage up to 100 fingerprints and 100 passcodes for access, alongside settings like Passage Mode and Silent Mode using a single admin code Ultimate Grip Comfort for Everyone. Upgrade your home's style with a sleek and unique biometric door knob that enhances the look of your door. For added comfort, the rectangular door handles feature a rounded design that's easy and comfortable to grip, even with wet hands Built to Last. Our top-quality zinc alloy construction and water-resistant design ensure long-lasting durability and unmatched security for years to come. Perfect for room rentals, house-keeping, offices, and dormitories, this fingerprint door lock provides added security and convenience for any interior room, from bedrooms and storage rooms to home offices, garages, and game rooms, etc MD1 takes indoor room security to the next level. The robust and stylish body is constructed by rigorously selected Aluminum and Zinc Alloy materials. Unlike any traditional door knob, MD1 enables you to manage up to 100 passcodes and 100 fingerprints, opening up multiple possibilities for various use cases. In addition, settings such as Passage Mode, Auto-Lock, and Anti-Peep passcode deliver ultimate convenience for day-to-day use. With our power-saving technologies, 4 AA batteries are able to provide up to 1 year of battery life. You may finally be able to put your keys away and use them as backup.