Type:Smart Lock, Fingerprint Door Knob, Keyless Bluetooth Thumbprint Lock, Smart Keyless Entry Door Lock, Fingerprint Door Lock with App Control, Bluetooth Smart Door Lock with Handle Designed to provide protection without disrupting your life. Features: 4 unlocking methods - biometric fingerprint recognition, emergency mechanical key unlocking, password unlocking, and remote unlocking via the TUYA App connected through bluetooth compatible. Free handle design can be used for both left and right-handed people and can be swapped at will. Fingerprint unlocking can store up to 50 fingerprints. Anti-peeping design allows you to set a dummy password by entering random digits before and after the correct password. The volume can be freely adjusted, and a mute mode can be set to avoid disturbing others when returning home late at night. If you frequently go in and out, you can set the always-open function, eliminating the need to unlock multiple times. With the TUYA APP smart management, you can easily view door lock logs, manage users, set door warning functions, and adjust volume settings through the app. A temporary password can be set, allowing friends and family to enter using this feature. The USB charging port allows for timely charging. Powered by 4 2200mAh NI-MH AAA batteries (included), it provides long-lasting endurance. Specification: Material: Zinc Alloy Battery Specification: 4 x 2000mAh NI-MH AAA Battery Power Supply Method: USB Charging Cable Power Supply ( Power Adaptor Not Included ) Operating Temperature: Minus 5 Degree Celsius - 55 Degree Celsius Number of Keys: 2 Fingerprint Capacity: 50 Verification Time: Approx. 0.5s Product Size(LxH): 15 x 6.5 cm Package Contents: 1 x Smart Lock 1 x USB Cable 2 x Keys 1 x Instruction Manual Please Note: Due to manual measurement, there might be a