The mydlink home siren is a smart audio warning device with 6 different sounds built in itrsquos easy to set up and manage with the mydlink home app and connects to your router via the mydlink home connected home hub it works with other mydlink home sensors such as the battery motion sensor or the door amp window sensor to provide a loud audio warning when motion is detected or a door is opened whether you are at home or away push notifications will alert you whenever the siren is activate