Review on FARCTRL Personal Emergency Products Protection by Michael Gonzales

I'll update my previous post. Yesterday I was in a situation where I had to use the alarm, when I pulled the pin nothing happened, a bit disappointed when I bought it, I hoped that one day I would need it, it would work. I hoped I would never need it. but I did it. Luckily I'm fine and things are under control, but it was a bad situation. I checked the batteries and they were fine, flashlight worked, checked the pen, couldn't find anything wrong. I like the Descreat size. I just want to understand why it worked. I'm considering getting another one and see I'm more than willing to give it a second try. Many Thanks