I'm a bail enforcement agent and protection is important. This Stun Master Baton is an excellent device. When the situation presents itself that it may be necessary to use this, it can be a real surprise in more ways than one. I was preparing to use this on an individual that was almost twice my size and out of control. When he saw the baton, he immediately reached out with his hands to block the "blow" he thought I was preparing to give him. This is the way it went down; he grabbed the baton to stop my defensive move. He grabbed the baton and zap, he was down and I got him cuffed. I guess he was shocked twice. Highly recommend it.