【Thermal massage and import/export mode】- The metal area on the back has a hot massage function that promotes blood circulation and absorption of care products. It helps to open pores for deeper cleansing. Additionally, it massages the heated facial muscles to increase collagen and elastin, reducing fine lines, making your skin firm and radiant. Recommended for regular use. Innovative Sonic Vibration Technology - Sound waves penetrate deep into pores to provide a full range of cleansing, 6 times more effective than a manual or rotating facial brush but less damaging. Additionally, sonic waves activate essential enzymes, accelerate blood circulation, and unblock pores for the beauty effect. 9 speeds to remove 99.5% of dirt - The upgraded silicone cleansing brush has 9 adjustable vibration intensities to help remove 99.5% of dirt in pores. Switch between 9 vibration speeds and heating massage modes. Provides you with a fully customizable skincare experience. 6 times more efficient and 35 times less damage - After strict technical certification, made of highly durable and more hygienic food-grade silicone; the bristles are as gentle as hands and do not damage the skin barrier. 35 times less harmful than regular nylon brushes but 6 times more effective.