We all probably know someone in our lives that lives or works in an area that has the potential for danger. I can't even tell you how many people I know that work late hour shifts at hospitals in the city. Sometimes that walk back to the car can be nerve-racking.
The little device you'll see in the video below can help solve that. Or, at least it will give people the chance to alert loved ones of a dangerous situation. I'll be thinking about picking up a couple of these.