【4-in-1 Smart Door Lock】Our smart door handle offers 4 unlocking methods, including fingerprint recognition, password entry(temporary password included), IC card access(2PCS) and key(2PCS). This smart door knob is perfect for bedroom, living room, Airbnb, office, flat, rental house. Quadruple security layers adapt to your lifestyle.

【Doorbell Function Available】Our smart door locks include a doorbell button, a combination of tradition and technology that ensures you are alerted when your guests are visiting without disturbing your neighbors.

【Fingerprint Unlock】Enjoy quick and secure access with advanced fingerprint recognition technology. This smart fingerprint lock can store up to 100 fingerprints, making it perfect for families, offices. Fingerprint door lock features a fast response time and automatically locks within 3 seconds after closing the door for added security. All fingerprint data is stored locally on the device, ensuring your personal information safe.

【Replaceable Batteries & Emergency Power】This fingerprint door lock uses 4 AAA batteries (batteries are not included), with a battery life of up to 8-10 months. The low battery alert feature ensures you're warned in advance to avoid accidental unlocking. The fingerprint door knob also supports Type-C emergency power(non-rechargeable), so you don't have to replace the lock, even when the batteries run out. Enjoy uninterrupted performance and convenience.

【Easy Installation】Our fingerprint door locks are easy to install and fit most US doors. If you have any questions, please contact us and we will give you a satisfactory answer within 24 hours.