because I had already read out several reviews, that makes more sense, the device to stream to "tinker", was dug the soldering set out at the weekend out of hand and everything so far done, which I now equipped with a USB cable with adapter am.
The engine is not very powerful, so I can imagine roughly how it would have been with batteries / battery's. Then I would give it only 1-2 stars.
But by modifying the device is now (almost) perfect!