These Honeywell Bluetooth digital locks can be locked and unlocked with a traditional key, digital pass code or with the free Bluetooth smart phone app with keyless convenience. You can create and send permanent, temporary (timed) or one-time use Bluetooth ekeys and digital pass codes to anyone from anywhere with your smart phone. The app also allows you to view and monitor entry access and time log for all assigned users as well as receive automatic notifications when your Lock is accessed by users. The lock includes bump protection, an installation hardware kit and 2 keys, a single contemporary style square faceplate in a satin nickel finish, and is easy to install with Phillips head screwdriver. The lock requires 4 AA batteries (not included) and also has a low battery indicator.