High Spßafaktor, however, the pin has a short life

When the pen is working, then it's also really fun, and you should mention that it consumes vast amounts of batteries.
The deduction of points are, however, but not for the high battery consumption, but that the pins wear out quickly, despite careful treatment.
After every 13 months the pins were with us defective suddenly overnight, for the high purchase price an absolute no-go!