This is an add-on to the first- and second-generation Yale Assure Locks to allow them to connect to the Yale Access App via your Wi-Fi connection, with no bridge device necessary With the app, you can lock and unlock doors remotely and share access to your home or business at the touch of a button on your phone, tablet, or computer The Yale Access app is compatible with both iOS and Android devices App provides entry and exit history, so you can keep tabs on who is coming and going DoorSense technology lets you know when the door is left open Assure lock will automatically unlock when you arrive, and lock back up behind you System works with Amazon Alexa, Hey Google, and Siri home assistants using IFTTT technology, making your smart home even smarter