Although the processing and performance is ok, you can go out as a purchaser of it when on the website a soft product is angeprießen that this is also quiet.
It may be that receiving enough power through the USB port of the USB fan and therefore no external control possibility - the developer should have come up with another solution.
In general, these USB fans are in this price segment is not worth the money.
Conclusion: fans should bring performance at a reasonable volume. This product is only partially meeting this requirement and is therefore recommended only conditionally. Instead of this I've bought a normal desk fan.
