4-in-1 Smart Door LockOur 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 AvailableOur 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 UnlockEnjoy 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. Replaceabl