Feature: 3-in-1 Professional Growth Solution. Encourages natural regrowth for thicker, healthier hair. Evenly distributes chosen oil directly onto the scalp. Automatic movement of 72 bristles at different speed modes. Provides a gentle yet highly effective scalp massage. Increases blood flow to the scalp for healthier, stronger hair. Specification: Rated voltage: 3.7V. Size: 21*8.5*5.7cm. Color: black, red. Gear selection: 3 gears. Rated power: 5W. Material: ABS. Package Included: 1pc * Head Massag Brush. Notes: Due to manual measurements, please allow slight measurement deviations. Color may not appear as exactly as in real life due to variations between the computer monitors.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store