You need to pair with the Vivint Sky Control Security system. Because the doorbell is integrated with Vivint connected-home/home security system, you have the option of remotely unlocking any of your doors that are equipped with a smart lock. If you are not home and you want to let a friend or family member into the house, you can remotely disarm your security system and unlock the door for them. This could also be useful if you need to receive a package while you are away from home. The Vivint Doorbell Camera, a Wi-Fi enabled smart home product, features advanced video analytics to alert homeowners to approaching visitors with customized notifications to a mobile device. The discreet doorbell camera starts recording when a person approaches the door. When the visitor rings the doorbell, the homeowner receives a live video feed through a smartphone app or on the Vivint SkyControl wall panel installed in the home. The doorbell cam also features night vision technology, allowing homeowners to see visitors approaching even in low-light conditions.