When I read the name Staedtler here, I had run out of quality. Because Staedtler pens accompany my professional life for a long time. So I was willing to pay a higher price for that, I am assumed here to pay for quality.
However, the execution was a bitter disappointment. After a long installation random-Warr and until I first time behind came as what software with which options work, the supplied batteries were already empty.
Meanwhile, the data is no longer transmitted from the mobile receiving device to the computer.
So I think that we should wait a few tense years before the actual execution works as smoothly as the idea behind it.