Key-free access system lets you use the keypad or the Yale Access app instead of a traditional key Optional Auto-Unlock with DoorSense feature automatically unlocks the door via Bluetooth when you get home Custom entry code system allows you to provide temporary codes to loved ones or service people as needed Auto-lock technology provides peace of mind Battery-powered unit offers up to 12 months of battery life Entry and exit history gives you a complete overview of when your home was entered, with push notifications available via the iOS or Android app Enhanced app security keeps your password data protected Compatible with Apple HomeKit smart home accessories