Vibration felt in handle not head.. [SEP] I wanted to like these, but they are worthless. The vibration meant to clean your teeth is only felt in the handle not in the head of the brush. The vibration placed there does not help to clean your teeth. So bummed.<br /><br />I have owned several of these over the years, worst yet. I bought 2 2 packs (four brushes total). Waste of money.