We have acquired the Sonicare HX6311 / 07, among other things because of KidPacer function. It should have been a "funny music" and 10 different melodies. However, it is strange beep sequences and take approximately 0.5 - 1.0 sec. -> That was a disappointment. We have even exchanged as we have a defect suspected, but the second was identical.
Otherwise, there is nothing to fault - an electric toothbrush as it should be. 2 star deduction - as a differentiating feature is applied to other manufacturers is simply not true.