Kneading at neck, back, waist and thighs to release muscle tension and improve blood circulation. Built-in vibrating motors at seat cushion to relax the body and strengthen the metabolism. Unique up and down device is based on the theory of somatology. This appliance is developed to be able to imitate human hands to knead, press, roll and vibrate big area of your body with multi massage heads. It's organic combination of kneading and vibration. Four kneading heads have walking function, which can roll and slide up and down to shiatsu and knead your body. There are three massage programs: Full back, Lower back or Upper back massage, suitable to use in office, family and car.