Today the brush goes back however. After she started a few days ago to every now and then off on its own, it has now begun either not to let off or even to turn on its own and no longer to let off. Until the battery (which holds very long time, which will be mentioned at this point) The buzzing in the bathroom was hard to bear and audible in the whole house. Remedy brought the laundry basket ....
As I said, goes back. I am not convinced and is broken after only two months.