This Review Title is it does not work and the content is: I am very sad, since I am anxiously waiting for these products, and when I arrived I have to say that it does not work, I thought maybe the batteries were, although they were not cheap batteries, I went to buy some of better quality and even this brush did not work.😔😔😔😔.There are other information for this review, one is This reviewer did purchase it and the other is 0 people think this review is helpful.