Effective, but poor quality

First the positives first: What you can do with this little "massager", is incredible. Better 'results' delivered at most of the original Hitachi Magic Wand and the 'large' Fairy. However, both are wired, a better wireless alternative is not known to me.
It can be adjusted infinitely variable. The battery does not last forever but long enough. Cleaning is also no problem.

However, negative evaluate are volume and durability.
The unit is very noisy. But even worse is that there is high-frequency sounds from qietschende currently in the lower speed range. That's very annoying.
In addition, my device is simple broke down after not even a year ago. After the Fairy suddenly with each battery worked only a few minutes, the device no longer even went shortly afterwards. Loading was also no longer possible. I therefore suspect the battery as a cause. Pity!