The device is actually equal to usable because it works both in Akkku- as well as in network operations. Allegedly, the battery lasts for 75 minutes haircut, which I have not yet been tested exhaustively. Charging the battery takes a long time 8 hours.
The cutting blades are sharp and ensure a smooth, clean haircut. The fact that only one article is vorbanden, it came for me but a real problem: the essay is quite bulky and just when it comes to an edge in the hair cut (my child at the back), it is a guessing game, if I've found the right spot. Indeed, it is almost impossible to see where the blades are. Sure, by trial and error works the then already, but you should not experiment too much to heads of other (or even on your own). With some practice, then it works quite well. From other devices I know it, that you are working with multiple attachments for different lengths. Probably both advantages and disadvantages, so here without judgment.
Addendum: Unfortunately, the universal attachment proves to be really problematic when it comes to cut hair over or behind the ears: then the thick paper is constantly in the way and it's almost impossible to work there in detail.
Surprisingly, the performance of the unit to the power plug as well as battery power is equal. Many devices that can be operated either way, the performance in battery mode is often lower. Very nice.
The cutting length is adjusted via a spin on the device. This should not be adjusted in application.
The shaver can also be used without attachment - then there's a hair length of 0.5mm, which is even for a very short facial hair. On his head I do not imagine that ;-) For a neat look on his face but a great thing.
The equipment of the device is very narrow, but the price is attractive. The cutting capacity, and at issue is essentially yes, very good. Especially I also like that the device can be operated with battery and with the cable and no performance degradation when using battery power is available.
Good 4 stars.