This Review Title is Vibration felt in handle not head.. and the content is: 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..There are other information for this review, one is This reviewer did not purchase it and the other is 0 people think this review is helpful.