Wi-Fi and Bluetooth connectivity lets you add this smart lock to your home network and access it using your favourite device Compatible with these smart devices: Google Assistant, Amazon Alexa and Apple Home Yale Access App lets you offer fingerprint touch or share virtual keys with trusted family and friends, as well as track who comes and goes, and much more Automatic locking function gives you peace of mind when you forget to lock the door yourself Two-factor identification ensures only the right people can get into your home Powered by four AA batteries (included), offering you a convenient power supply Easy to install, using the clear instructions provided