This is a Qrio Lock. A remote key is also included. You can lock and unlock it from your smartphone, and also use the remote key. The lock automatically closes when the door is closed. It was very convenient for preventing forgetting to lock the door and for locking and unlocking without using a physical key. I am selling it because I am moving. The Qrio Hub will also be included. The manufacturer's website states that the support period has ended, so future operation is not guaranteed. Please understand this before purchasing. Electronic door lock, black, with remote control, easy to install. - Type: Electronic door lock - Color: Black - Remote control: Included - Installation method: Easy installation Thank you for viewing.