1. Radiofrequency is used to stimulate the regeneration and remodeling of new collagen fibers. With the increase of the number of new collagen, the arrangement is closer, and the loose skin wrinkles are tightened, thus achieving the purpose of improving wrinkles. 2. Cooling technology protects the outer skin, and at the same time accurately locates the depth of action to ensure that the underlying tissue will not be damaged. 3. Heating can stimulate tissue regeneration and recombination, increase collagen density from inside to outside, and be more effective when cortical structure is denser and more elastic. 4. The electrodes move in pairs and output, so that the energy is more accurate and uniform.