Description: Upgrade your home security with our Smart Digital Door Lock, featuring advanced WiFi connectivity, fingerprint recognition, and 3D face recognition technology. This versatile door lock ensures secure and convenient access for your family and guests, offering multiple unlocking methods and comprehensive safety features. Key Features: Multiple Unlocking Methods: Access your home using the APP, password, fingerprint, IC card, mechanical key, or 3D facial recognition. High-Capacity Battery: Equipped with a 4200mAh lithium battery, providing reliable power with a low voltage alarm for timely recharging. Emergency Power Supply: Supports 5V Micro USB emergency power supply to prevent lockouts. User-Friendly Interface: Standard 14-key keyboard (0-9, * # doorbell locked) with a simple and intuitive design. High Security: Features a semiconductor fingerprint head with a capacity of up to 99 groups, ensuring precise and reliable fingerprint recognition. Comprehensive Alerts: Includes anti-disassembly alarm, low battery alarm, and system lock alarm for enhanced security. Cloud Storage: Securely stores data in the cloud, ensuring information safety and accessibility. Wide Compatibility: Suitable for wooden doors and anti-theft doors with a thickness of 45-120MM. Robust Design: Operates efficiently in a wide temperature range (-1060C) and humidity (4590% RH). Specifications: Supported Mobile Systems: ANDROID 4.3 / iOS 7.0 and up Battery: 4200mAh Power Supply Method: 7.4V lithium battery Emergency Power Supply: 5V (Micro USB) Low Voltage Alarm Voltage: 7.2V Voltage Range: 4.5-9V Standby Current: