This ring balance the temperature of human body, which I think it’s really legit. People’s mental condition could easily influenced by the weather or temperature, so if this ring controls the body temperature, then it will be very efficient for people to manage their feelings. I can imagine this ring could be used for people who gets cold easily. Although it looks little big, it can also be a fashion item which it simple and little, and you can take it out easily. I am currently interested by fashionable accessories while it is wearable technology.