Review (1/5): Don't waste your money.
I received this as a gift for Christmas. It worked great for the first few weeks, and my teeth were noticeably cleaner. However, it then would start shutting off before the 2 min interval was up. The intervals got shorter and shorter. Then, after another week, it died all together. Don't waste your money on this cheap Sonicare, just buy the more expensive ones that are better made.