thanks for your answer😀

I tried it and it didn't work for me. I had it for a good amount of time and I used it correctly and it still didn't work. I then adjusted the frequency of using it and the levels but I still I didn't feel noticeably better. The only upside was that I was able to sell it used for close to what I paid for it, because it's in high demand. This was just my experience, though.

Never heard about it . Need to look it up

What is it?