Brand from France: Notime. Ultrasound: Super penetrating ultrasound, open skin channels, intensively transport nutrients, deeply replenish water, relieve dry, dark yellow skin, and decreased elasticity.RF radio frequency: Stimulate skin fibroblasts to secrete and synthesize new collagen, fill the vacant parts of lost collagen, and restore skin elasticity.Slow-release pulse current:penetrate deep into the skin fascia layer and muscle layer, stimulate muscle movement, improve edema, lift and tighten, and raise the contour line.Red light: Red light improves cell activity and accelerates skin repair.