The Alarm.com Slim Line Doorbell Camera features a doorbell with an integrated camera, PIR motion sensor, digital microphone and speaker, enabling homeowners to answer the door and speak to visitors via two-way audio - all right from their app. You can also record doorbell triggered clips, set motion triggered automation rules and receive real-time alerts. You MUST have an active alarm.com account to be able to utilize this. This product does not work with skybell and there is no Slimline version that does work with skybell.