【6-IN-1 Keyless Entry Door Lock】Our advanced smart door lock that offers six versatile unlocking methods:Fingerprint +APP+ PIN Codes + 2 Mechanical Keys +4 IC Cards+Smartwatch App unlock (need to download Tuya app),Choose the method that fits your lifestyle and enjoy the ease of keyless entry performance. Perfect for bedroom door lock, office, closet, garage, or apartment use, this smart door knob ensures quick, secure access every time 【Advanced AI Self-Learning Fingerprint Technology】Our fingerprint door lock features cutting-edge AI algorithms that continuously improve recognition accuracy with each use. This fingerprint door knob identifies fingerprints in just 0.2 seconds with 99.9% accuracy, making it ideal for families with children or elderly users. The thumbprint door knob continuously adapts to changing fingerprint patterns, ensuring reliable performance as a smart bedroom door lock for all your interior doors 【One APP Management Multiple Smart Door Handle Locks】 Effortlessly control all your Tuya biometric door knob through the intuitive Tuya app: manage users, add passwords or fingerprints, auto-lock, Bluetooth enabled for keyless entry, view unlock history(Note: App Control within Bluetooth Range. Your personal data is secure with local storage of fingerprints and app data, ensuring it is not uploaded to the cloud). Say goodbye to key clutter with this smart lock system that simplifies your life.Perfect for managing multiple door knobs throughout your home or offic 【Flexible Passcode Management - No WiFi Connection Required】Create and manage up to 100 unique passcodes, including one-time, temporary, and dynamic codes—directly through the Tuya app via Bluetooth. Share access remotely with family, guests, or service providers. This keypad door knobs feature is ideal for homes, rentals, offices, or vacation properties. The door handle with keypad features soft backlighting for easy day/night operation 【Easy installation】No locksmith required!Our smart lock with handle is engineered for quick,installation on standard US single-cylinder doors (fits left/right-handed setups). With an adjustable latch (2-3/8’’–2-3/4’’ backset) and compatibility for door thicknesses 1-3/8’’ to 2-1/8" (35-55mm), upgrading your door knob takes minutes—just a screwdriver needed, no DIY experience required. The sleek matte black finger print door knobs elevates any space (bedroom, office, closet, etc.) with modern security and style. Combine the convenience of a keypad door knob with advanced biometric door lock technology, outperforming Traditional mechanical kocks & keys 【Multifunctional Intelligent Lock& Satisfaction Service】Seamlessly switch between Auto-lock, Passage, and Silent modes via the Tuya app to suit your daily needs.The electric door knob operates for up to 180 days on just 4 AAA alkaline batteries (batteries not included). Equipped with a low battery alarm and type-C emergency unlocking port.Note: For emergency unlocking only, not for charging the battery,Easy MSR smart fingerprint door lock includes 24/7 email support for installation, app setup, or troubleshooting Upgrade your home security with our state-of-the-art 6-in-1 Keyless Entry Door Lock, designed for modern living. This intelligent door lock system eliminates the frustration of traditional keys while providing instant, secure access to your bedroom, office, closet, garage, or apartment. Our AI Self-Learning Fingerprint Technology revolutionizes home security, continuously improving recognition accuracy with each use. This fingerprint door lock is perfect for families with children or elderly members. Take complete control of your security ecosystem with our intuitive Tuya app management system. Effortlessly manage multiple smart locks throughout your property via Bluetooth connectivity. Create and customize user permissions, add fingerprints and passwords, enable auto-lock features, and access history—all while keeping your data secure through local storage that protects your privacy without cloud dependency. Generate up to 100 unique access codes—including one-time use, temporary, and dynamic passwords—directly through the Tuya app. Perfect for homeowners, landlords, and business professionals, this feature allows remote access sharing with family members, guests, or service providers. Choose from multiple modes: Auto-Lock for automatic security, Passage Mode, and Silent Operation for discreet use. The energy-efficient design operates for up to 180 days on just four AAA batteries (not included) and includes both low-battery alerts and a Type-C emergency unlocking port. Our fingerprint door knob is engineered for quick installation on standard US single-cylinder doors (fits both left- and right-handed setups). It features an adjustable latch (2-3/8" to 2-3/4" backset) and accommodates door thicknesses from 1-3/8" to 2-1/8". The sleek matte black finish complements any decor. This smart door knob system combines advanced biometric technology with