First Attempt:
I plug the device to charge the battery, I try 2 minutes on one leg, and it's not too bad! An hour later charged battery, so unplugged, it works well.
The next day he does not work, unless it is plugged in!
I leave it to charge ... and nothing to do either. It absolutely must be connected to work.
Also, I do not find it particularly quiet.
I did not buy on Amazon, but in supermarkets. Of course, I lost the receipt ..... 37 epilator which is supposed to operate wirelessly, it is obviously a product I do not advise you!