The Swann Wi-Fi Indoor Siren is a Wi-Fi enabled indoor alert system that is triggered by sensors to alert you to intruders at your home, deterring them from entering. Control alarm sounds using a connected application on your phone, even if you are not at home when the alarms go off. Siren is easy to install, and can be plugged in and connected in minutes. | Swann Wi-Fi Indoor Siren - White