4-in-1 Access Options: This smart door knob offers unparalleled convenience with four unlocking methods: app control, fingerprint recognition, keypad code entry, and traditional key. Each method ensures secure and easy access tailored to your preferences and security needs. Enhanced Security and Privacy: Equipped with advanced features like anti-peep technology, auto-lock, and a low battery alert, this fingerprint door knob ensures your home's security. The privacy mode allows for undisturbed periods, while silent mode offers discreet access when needed. DIY Installation: Easily install this biometric door knob on any standard door with the provided tools and instructions. The straightforward setup process does not require professional help, making it a perfect DIY upgrade for enhanced door security. Remote and Voice Control Capabilities: Integrate the door knob with the Tuya Bluetooth gateway for seamless control via your smartphone. This feature allows you to manage access remotely, monitor lock status, and adjust settings from anywhere, enhancing convenience and security. Customizable Access Settings: Tailor the door lock's operational modes to fit your needs. Choose from passage mode for free entry, privacy mode for added security, or silent mode for noise-free operation. Ideal for managing access in homes, offices, and various professional settings. Color: Black Material: Aluminum Package Contents: 1 set of smart door locks 1 set of installation accessories Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.