After the first charging we took (2 persons), the toothbrush in use. The teeth were smooth and very clean, even in the interdental spaces. The toothbrush is light, handy and fits comfortably in your hand. In the large storage box everything is clearly laid out. This small case, however, is not ok, because just the toothbrush and a brush head has space. Is not that really good and looks very, very cheap from. Equally she feels well. The plugging of the brush head is in the beginning a bit strange. Now comes the important part of the device, the battery. We had charged a precaution after a mileage of 90 minutes, the battery. Indicated 84 minutes. When charging the battery had a mileage of a total of 184 minutes. This is the best performance compared to our previous toothbrushes. The Braun Oral B were - Triumph and Philips Sonicare. By Philips I had written a review. The timer is set for 3 minutes after each 30 seconds, there is a short stop. Who the duration is too long, the toothbrush switched individually from after his presentation. When the battery is completely empty which is indicated by a red light. Changeable is only and exclusively the "speed of sound". Note: The manual is only available in English version. Can, however, the net as a German version download.