Its working principle is to break the impurities in the pores through high frequency vibration + ultrasonic vibration, and then discharge them. Using skin care products can also accelerate the absorption of dead skin blackheads.Blue light rejuvenation can restore skin elasticity, shrink skin pores, reduce wrinkles, and improve facial skin texture to adapt to different skin conditions.The positive and negative ions are removed, most of the dirt, oil and cosmetic residues, so the residues will be sucked out in the positive ion mode, which can clean the skin well. The nutrients of most daily care products can only reach the epidermis, and negative ions can combine with the positive ions of skin cells to deliver nutrients to the skin for deep nutrition.Mix and match with skin care products such as deep cleansing oil, cleansing foam, toner, essential oil, essence cream, etc. You can use skin cleansers at home, outdoors or on business trips.USB rechargeable design, with a USB charging cable, it can be easily charged through a computer, mobile power supply or other devices. The battery capacity is 500 mAh. Please charge the battery when using it for the first time.