This is a thermal wristband that can be worn on the wrist to adjust body temperature. It alleviates heat and cold with the touch of a button. It can relieve temperature discomfort such as hot flashes, night sweats, and chills. Relief effects have been demonstrated through clinical results. It works on the heat-sensitive skin of the wrist, and the sensation is transmitted to the brain through the nervous system, thereby changing the overall body temperature. Brand new, unused.