Also disappointed

negative:

1) Microphone
This works for not talking. Only if you can hear clean blows that it is not completely defective. (So ​​unwatchable.)

2) conveyor belt
In my opinion, it can be turned to hard. For smaller children hardly likely to use. (So ​​unwatchable)

3) Scanner
Although the scanner beeps and lights up but does not sound nearly real.

positive:

1) Calculators
The keys of the computer are probably well suited very soft and for children.

All in all disappointed with the purchase. I would prefer if it would have cost a few euros more and would work for it.
I would so do not buy it again.