Face Recognition Smart Lock with HD Video Camera, Biometric Fingerprint Lock for Front door with Smart Doorbell, Password. Why do you need a smart lock? Will you forget to bring the key or lose it? When you are not at home, your friends do not visit, and you are worried about your home being stolen while you are away. All these smart locks will solve you. You can remotely authorize the unlocking password to unlock the lock through the Tuya APP, and record every unlocking record for you. Combined with other Tuya smart products, you will enjoy a smarter and safer life. Support facial recognition, Fingerprint, Password, Card, Key, APP unlocking. Fully automatic unlocking and locking, easy to use. Use time 3-5 months. Built-in HD intelligent visual doorbell. When pressing the doorbell, take a picture and push it to the APP. Compatible with left and right door opening directions. Face, Fingerprint, Password, Card, Key, App. Low battery/Incorrect Fingerprint/Incorrect Password/Anti Prying. 40% to 85% (No condensation). 430 x 75 x 15mm. 410 x 75 x 15mm.