What is the experience of smart wearable device Thync?

I first tried alert in refresh Alert (10/0 minute). At first, the intensity was not enough, so I pressed+in the app to increase it to 72/ 100. I feel it, a bit like the burning stimulation of acupuncture, but it doesn't hurt. I have always been a courageous person, and I have been brave in success or failure all my life, so I added it to more than 90. It's quite exciting. After about five or six minutes, the psychological feeling appeared: the brain became clear and the mood became cheerful, just like the feeling of walking in the forest park in the morning. One comment said, "A kind of exciting clarity-as if the mental fog we didn't even realize had dissipated. "This is more appropriate. It's a bit like George Costanza's effect after he didn't pick up girls: then I tried to relax in calm mode (10 minutes). This non-refreshing mode is very irritating to the skin, which is basically a faint trace, but the psychological effect seems to be more intuitive. This mode I use has voice prompts. When I used it for about six minutes, the voice prompt said, "Think about your troubles-are you still bored?" "It really works.