bought this for my father who always takes a morning dog walk. He was recently bowled over by a large dog on his walk and was injured. He doesn't carry mace and doesn't want to. The dog warden recommended carrying an air horn (not practical) or some kind of shock device. This is lightweight for carrying in his pocket and is easy to use quickly. No, thankfully, I can't tell you if it'll deter a future attack because he's not run into the dog again; but it hurts a lot when you touch it. Based on how it feels when used and it's convenience, I'm betting it will deter the next over stimulated, aggressive dog. I'm just happy he's willing to carry this as an option.

LOVE THIS PRODUCT!!! I love the size and shape of it! I just carry it around in my pocket! Thanks for such a great product! This is my second purchase of this self-defense weapon! May be purchasing more!

Holds its charge well & is small enough to keep it in my purse. Haven't had to use it thankfully but nice to know I have it in case I ever do. Is larger than a regular pen, but still a good size.

I knelt down at work and suddenly heard the most God awful feminine sounding shriek with tones of French ambulance siren mixed in. After peeling myself off the ceiling I realized that sound was me! Live and learn. Also I stutter now.