I bought this in addition to my toothbrush Battery Oral-B system. Processing and operating instructions are of good quality. To me it was a long time too costly to switch to an electric toothbrush. After I but longer concerns me on the advice of my dentist on the theme and enthusiastic battery of my Oral-B toothbrush was, I have gained this model as a second machine for the holidays or business trips. It is easy to carry, the batteries should last long enough and the advantage over a standard toothbrush is enormous. I do not want to dispense with the cleanliness and quality of the cleaning. The teeth feel much smoother, through the plaster system much more debris on the gums or between the teeth are removed. Of course, the toothbrush is not with the more expensive systems comparable, but for the price and the quality you get a great product. Recommended for traveling or if you want to install in the bathroom with no device Akkuladegerat.