This SOS / assistance button is a compact, portable device designed to alert people outside your home when you need help. Very important for elderly people living alone. Simply press the large, easily accessible button to send an instant distress signal. Supplied with cord. There are no monthly or recurring charges associated with this device. The assistance button can be integrated into the Nedis SmartLife application and connected to a Smartlife gateway installed in your home. Your request for assistance will reach your loved ones via this gateway, and via the application.