Enjoy all the features of August’s original Smart Lock and more with the HomeKit™ Enabled version that allows you to control the lock via Siri®. Use Siri® to lock and unlock, and check the status of your Smart Lock. With a sleek design and a stunning look and easy installation, it eliminates key fumbling, automatically unlocking as you approach and locking behind you as you exit your home. With 24/7 monitoring, the activity log tracks who comes and who leaves your home so you always know who opens your door. The smart lock lets you keep all your existing exterior hardware, replacing only the interior side of your door lock. Smart Lock Features Bluetooth® version: 4.0 Batteries Required: AA batteries x 4 (Included) Work With: August App, Apple® HomeKit™ Remote Viewing via App: Yes Push alerts to App: Yes Dimensions: 86.10mm x 86.10mm x 56.39mm What’s In The Box Smart Lock HomeKit™ Enabled x 1 AA batteries x 4 Lock Adapters x 3 Mounting Hardware x 1 Installation Guide x 1 Installation Requirements August App for iOS or Android Bluetooth® Smart Ready Phone Standard Deadbolt