The device is good and does the job. Particularly pleased that you can play around with the power of stimulation. The instructions say that with a low pain threshold, you will feel the current from 11 points, and if it is high, then from 30. I felt from 2))))) But I calmly transfer training to 52 (but I won’t add further, otherwise it will hurt). I also liked the fact that you take the device in your hands and there is no feeling that it is some kind of cheap garbage (it looks like it looks like a good player).