iSOS-100 is a wireless emergency call button product, by means of sub-1G RF communication interface, it can approach the real wireless deployment. It provides emergency help return function, improve personal safety protection. This system is very suitable for public area construction. For example, public toilet, hospital, nursing homes, open campus, large parking lots and etc. iSOS-100 installs a CR-123A battery delivers reliable electricity and reduces the cost of wiring. Realize emergency information transmission, meet low energy consumption, wireless communication and emergency monitoring, etc., greatly reduce the time and human resources required for system construction and maintenance.