Call Safe is the new Personal Safety Alert System that lets you preprogram up to five telephone numbers to call in case of an emergency. And the system is able to dial out and receive call. This product is specially designed for: * Elderly * Individuals with known medical conditions * Family members with high risk of falling * Patients recovering at home The Panic Pendant uses a 315 mhz wireless signal to communicate with the Control Hub and has a range of 100 meters (measured in open space) Contron Hub is powered by AC/DC adaptor and 3 AAA batteries in case of black out.* Individuals with known medical conditions Panic Pendent is powered by A23-size battery. Pre-program 5 emergency phone numbers Record own out-going message