This head massager vibration machine may just have one button but that switch holds the power of three dynamic massage modes. The Regular mode is perfect for daily use and relaxation. The soothing effects of the Deep mode improve your blood circulation making it the perfect hair massager for hair growth, relaxing you from within. The Pulsating mode toggles between the normal and deep mode, giving you the best of both worlds!: The soft silicone bristles coupled with the soothing rotating action ensures that it can also be comfortably used to massage head and body parts such as your neck, shoulders, knees and more.