Home, Office, and Rentals: A robust smart lock for your home, Airbnb rental property management and offices with high security and reliability. Multiway Ways to Unlock: (1) Patented PIN Genie digital keypad, (2) Smartphone app, (3) Alexa and Hey Google voice control (with the optional Wi-Fi hub) or (4) Physical key. Peek-Proof Digital Keypad: Patented PIN Genie keypad has four virtual buttons with three different numbers per button. The numbers change after each use by mixing the location of your PIN number. Super easy to use - Impossible for someone else to guess, even if they are watching you enter your code. Mobile App Control: Lock and unlock your door using the Lockly App. Monitor open/closed door status from anywhere with real-time alerts sent to your smartphone (with the optional Wi-Fi hub). Voice Control: Unlock, lock, or check lock status using your voice with Alexa or Hey Google (with the optional Wi-Fi hub). Programable Auto Locking: Never worry about forgetting to lock the door with customizable auto-lock feature. eKeys & eBadges: Grant revokable access to family, friends and visitors via Lockly app. Offline Access Codes: Grant access codes to trusted users. Codes work offline without Wi-Fi or Internet. Easy DIY Installation & Rekey Ready: Installs in no time with common household tools. Replace the key cylinder without changing the lock (with standard rekey kit).