Is there a logical reason for that. It only causes the base station to fall off of shelves in my personal experience. I have never found it to be useful for anything. If the base station loses track it rumbles but that doesn't really help me any. It's more of an annoyance and they probably could have dropped the price if that was not included. I had to put some of that crap under it to keep carpets from sliding to stop it from vibrating off a shelf I put up for it. Lol.