Unfortunately, there is a negative factor that prevents the top grade. The included power supply (such as the hair trimmer even Made in China) secretes a clearly audible, very nervendes pipes. A longer stay during charging is therefore not pleasant. In itself, this is unacceptable for a product of a brand manufacturer. I have long thought to assess the clipper therefore bad. Finally, I invite the device because of the good endurance of the battery but only rarely. In addition, I am usually during charging and not permanently in the bathroom. And since the hair trimmer is excellent in itself, I think a vote with 4 points is justified.