• 3-in-1 Unlocking: Fingerprint Door Knob provides up to 20 fingerprint recognition (0.5s fast unlock), tuya app control, and a hidden mechanical keyhole - triple security layers adapt to your lifestyle while maintaining 24/7 home protection
• Easy Installation: This door knob with lock fits most interior door knobs and door locks. Install in less than 30 minutes with just a screwdriver—no wiring needed. Suitable for most indoor door handles
• Advanced Smart Door Knob: You can view unlock records, automatic locks, traffic patterns, and security locks through the App, which can prevent unwanted people from entering your room and control your home security. 20 fingerprints can be stored
• Durable & Stylish Design: Built with premium materials, this smart door knob features a sleek black door knobs finish. IP54 Waterproof and scratch-resistant, it’s perfect for door locks for bedrooms door in your home
• Ultra-long Life Battery Emergency Keys: 400mah lithium battery can be used up to 1200 times on a single charge (Type-C port for quick power-ups). Low-battery alerts and emergency keys ensure uninterrupted access. Designed for reliability, it eliminates lockouts even during power failures