Bring smart features to your front door with the Alfred DB1S Bluetooth smart deadbolt lock. It's easy to install and it connects via Bluetooth or Wi-Fi for effortless pin code or Alfred Home app locking and unlocking. It offers 128-bit encryption, physical backup keys, an auto re-lock feature, and low battery warnings to ensure maximum peace of mind. | Alfred DB1S Bluetooth Smart Deadbolt Lock with Key - Black