Compatible with Agility™ 3, LightSYS™ 2, ProSYS™ PLUS. This 2-Button panic button has been designed for personal emergency situations, to signal a panic alarm in case of emergency, when the victim is unable to reach another communication device. It has been designed to prevent false alarms by having to press both buttons simultaneously to send an alarm. The control includes a clip to put it on the belt or can be carried on a keychain.