OEM Hold the top galvanised part and touch the skin with the bottom galvanised part. Move the device back and forth across the face to massage. Battery replacement: rotate the top galvanised part counterclockwise to remove the cover, replace batteries, then close and rotate clockwise to secure. The device only turns on when both galvanised ends are in contact with the skin. The product is not charged from a mains outlet; it will alert when the battery is drained and can be reused after battery replacement. Face Massagers