About this item 【Smart and Secure】: This intelligent lock is perfect for bedrooms, offices and home front door. It features 5 unlocking methods, including fingerprint unlocking, password unlocking, Fob IC keycard unlocking, APP unlocking and physical key unlocking., providing a secure and convenient way to protect your space. 【Integrated Camera】: Only when some one ring the doorbell, the HD camera provides clear views of your doorstep, you can know the outdoor situation without opening the door. and it wont record the video in order to protect the privacy of passers-by. 【Video Doorbell And Intercom】: With built-in dual microphones and speakers,only when a visitor presses the doorbell, and enjoy smooth and clear talk with visitors at your door. If you are not at home, you can also check who the visitor is via the app, talk to him, and open the door for him remotely. 【Unlock from Anywhere Anytime】: Built in WIFI, no gateway required, directly connect your house's 2.4Ghz WiFi Network. Use Tuya APP to remotely unlock, get real-time notifications, view visitors, view unlock records, and easily set up. 【Smart Door Lock Handle Set】: The package includes 2 door handles, so you can easily upgrade your existing door lock and handles. Our smart door lock keeps your home safe and gives you and your family peace of mind. 【Energy Efficient】: The lock operates on a DC4.5-6.5V working voltage and has a standby power voltage. It features a standby current of <45uA and a operation current of <250mA. The lock operates on 4 AA batteries (not included),up to 6-9 months, making it easy to maintain and replace when necessary. Specification ☆ Door Thickness: 35-45mm ☆ Fingerprints:100 Users ☆ Fingerprints + Password + IC Card:300 Users Password length:6-8bits ☆ Power input:DC 4.4V-6.5V ☆ Battery: 4 * AA battery (not included) ☆ Low power alarm: 4.7V ☆ Standby current:<45uA ☆ Operation current:<250mA ☆ Working temperature:-20~65°C ☆ Working humidity:15%~95% ☆ Communication:WIFI ☆ APP: TUYA