Ergonomically designed to fit the face and feel comfortable. 3. Made of medical silica gel, which is non-irritating to human tissues, non-toxic, non-allergic, and has good physical and chemical properties. 4. Multiple functions: tighten pores, increase oxygen, and repair skin. 5. Light weight, no burden on face, comfortable and painless.Use it, you can stand, sit or lie down. 6. Fully charged in 2-3 hours, can work 40-50 minutes after fully charged. Light Function 1. Red light(630nm):Improve skin, rejuvenate,dilute wrinkle,and deep repair 2. Blue light(470nm):Calms skin, balances secretion,and controls oil 3. Yellow light(590nm):Decomposes pigments, detoxifies lymph, and improves roughness 4. Green light(520nm):Balance water and oil, soothe the spirit, balance and stability 5. Purple light:Treat acne, remove acne marks 6. Cyan light:Metabolism, and enhance energy 7. Laser:Break down stains, improve fine lines and speed up metabolism Note: 1. Must not be used when charging, otherwise it will cause a short circuit. 2. You will not see the effect immediately, it will take some time to repair your skin, so please continue to use and wait patiently(If you want a better mask effect, it is recommended that you also use professional related skin care products. LED lights will promote the absorption of skin care products and enhance the effectiveness of skin care products, then the effect is better) 3. Do not look directly at the LED light, otherwise you may feel uncomfortable(For the first time, use the micro-current function with minimum intensity.