I don't know, lol, I will have to stick up for my razor on that aspect, i loaded my kids in my van, and had set my phone down while doing so, about ten miles up the road, at 45mph, I realized what I had done, after I had watched it fly back, past my window, and land, open on the road! lmao, I prayed as I watched my rearveiw, that the other cars didn't run it over, when I got back to it, it still works! It had a body glove cover, so I assume that helped some, but still, it had to hit pretty hard, it was off when I picked it up, it still works, ..besides a few nicks, and scratches!