This SOS button is small and unobtrusive, and uses mobile technology allowing it to work anywhere with a mobile signal. Able to be worn around the neck or wrist, it automatically calls three landline or mobile numbers you have set one after another, until answered. It then allows two-way communication through the pendant. Once connected it allows for immediate action to be taken, whether that is to call the emergency services or contact a neighbour to arrange help with daily chores. The button is powered by a USB, rechargeable lithium battery and features a low battery indicator plus optional SMS low battery alert. The telephone numbers and functions, can be altered remotely, ensuring the device is always up to date. The SOS button includes a roaming SIM and bundle of 150 minutes over the first three months. Once this is complete, either your own SIM card can be used in the pendent or a customised roaming SIM package can be provided. Supplied with a lanyard.