NIB. Retails $54. See pics. Retails $54. Sold on Amazon for 39.99. 3-IN-1 BIOMETRIC DOOR KNOB: The ultimate security solution for your smart home or office.. THREE MODES FINGERPRINT DOOR KNOB: Designed to provide convenience and enhanced privacy to homeowners. Easily switch modes by rotating your thumbprint around the smart door knob. The modes are passage mode, entrance mode, and privacy mode. SMART AND CONVENIENT: KLLOQUE finger print door Knobs come with an app (Detailed in the manual) to manage fingerprints, view unlocking records, lock/unlock and privacy mode to help create smarter door locks for bedrooms. Note: App Control within Bluetooth Range. If you want Wi-Fi control, need a separately purchased gateway. Whether you own a hotel or Airbnb, you can grant temporary access to guests and revoke it easily, all from your smartphone. SECURITY DESIGN DOOR LOCKS: The biometric door knob with lock blends style and functionality. It can recognize your thumbprint within 0.1 seconds, store 20 fingerprints, and 5s Auto locking feature to ensure your home is safe. Fingerprints are stored locally and not uploaded to the cloud to ensure your family's privacy. RECHARGEABLE & EASY INSTALLATION: The KLLOQUE fingerprint door lock has a built-in 400mAh rechargeable battery that takes 3 hours to charge fully and can last up to 12 months. The door lock is easy to install with a screwdriver and fits most US doors.