Mai Jiaxin took the third gear to lose weight. Because the third gear of Mai Jiaxin's belt has physical therapy functions such as far-infrared fever and magnetic therapy, it can promote blood circulation, relieve pain, improve muscle stiffness and make muscles healthier. At the same time, using the third gear of Mai Jiaxin's belt can also stimulate the waist acupuncture points, promote fat decomposition, reduce waist fat and achieve the effect of losing weight. Therefore, Mai Jiaxin's belt opened the third gear to lose weight.