STI mugger stopper plus stops mugger attacks or harassment two ways:
i) By sounding an earpiercing 120 dB alarm
ii) With an attention grabbing strobe light.

This two-way action also makes it more effective in summoning aid in case of an injury or fall.
To activate STI mugger stopper plus, simply pull out the plug on top of the unit. To turn on the built-in flashlight, slide the button on the side of the unit up.
In addition, the built-in light can be used to prevent you from stumbling around for your keys on those dark, moonless nights.