Key Features . Power Adapter has 6ft/2m CableHigh/Med/Low Siren VolumeChoice of Siren or Melodies This Siren alerts you when events are detected by Swann’s range of Wi-Fi Sensors (sold separately). With this Siren you’ll always be aware of what’s happening in and around your home or business as once triggered it lets off a loud alerting sound that’s able to be armed disarmed and controlled in the Swann Security app with adjustable volume.It also has lights to notify you visually. Use it to be alerted of doorway entries/exits the movements of people and; and pets even water leaks! This Indoor Siren can be integrated into a complete security system managed on the app to receive alerts..