This toothbrush really was far better than I expected, it is very cheap for an electric toothbrush so I was slightly worried it would break. However I haven't encountered any problems with this toothbrush in almost a year! It is streets ahead of other tootbrushes in that price range and even better than ones more expensive.
It actually has two different parts that move, first of there's the spinning head then there's another part that makes the bristles move up and down. This provides the toothbrush with a great brush which leaves your mouth feeling cool and refreshed.
It runs on a single AA battery which will last for at least six months. I also like the fact that it has no wires. My only complant is that the heads are expensive, they cost $12.00 for one or $17.00 for a pack of three. If I where you I would not worry about that because its really a fantastic toothbrush.