Yellow LED light (570nm) helps the absorption of cosmetic ingredients by applying a small electric current and changing the electrical environment on the surface of the skin. 10,000 times per minute micro vibration massage improves skin vitality and promotes the appearance of firmer skin. Compact design, easy to carry and convenient to use. For all skin types. How to Use: Apply skincare products on your face and neck. Press the head against face or neck and gently massage it. Following the texture of skin, move gentle circles on your face.