Four in one ultrasound instrument: This beautiful beauty instrument combines the four functions of ultrasound massage (1m, 3m), imported photons and ions, which can improve the structure of the skin, tighten the skin, smooth the pores and eliminate puffiness and dark circles. It can provide different effects such as blackhead and acne removal, anti-aging and anti-wrinkle, skin tightening and tone, deep cleansing and skin massage.Ultrasound: The device uses two ultrasonic probes of 1 meter per second and 3 million times to generate high-frequency vibrations, penetrating the ultrasonic waves and acting on the human body to absorb the sound energy of heat. Skin cells promote skin blood circulation, promote metabolism, improve nutrient absorption and defense abilities. The body activates cells and lives in the pelvis.Positive and Negative Ions: Positive ions remove deep dirt, deeply cleanse the skin, smooth and firm the skin. Negative ions direct the power of skin care products into the deeper layers of the skin to effectively absorb nutrients. The ion implantation and the water soluble beauty ingredients transmit a weak current and guide it through the skin layer by the force of sound and vibration.Photo: Red light: It can reach the skin layer, stimulate physical cells, improve blood circulation, activate skin, reduce wrinkles and smooth skin. Green light: it can promote metabolism and microcirculation, dilute pigment and whiten. Blue light: It can kill bacteria, calm and fight rashes and acne, strengthen the organization of protein fibers and shrink pores.How to use: Charge the device for 3 hours before using it for the first time, then cleanse your face and apply some essence if necessary. Please note that you can choose the suitable working intensity and LED chromotherapy. Gently repeat circular motions on the skin, pulling up and down, no more than 3 seconds for a single point, it is slightly warm when using it.