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🔐【5-in-1 Smart Door Knob】 Fingerprint + Password + Smartphone( should be work with Bluetooth Gateway) + Mechanical Key. You can also open the lock by ALEXA. Five secure and convenient unlock ways, give your family more ways to open doors.
🔐【Easy Installation and Programming】 Reading the installation instructions or watching the installation videos. Combined with the complimentary screwdriver included in the package, the installation can usually be completed within ten minutes. Password programming design is also very user-friendly, simple operation.