*HEAT FUNCTION -- The neck and shoulder massager is equipped with infrared heat, which can be used to ease muscle tension and stress. Warm function is controlled by yourself to promote the blood circulation effectively*HAND VIBRATION FUNTION: One-button-control for vibration hand function, helps you to relax your tired hands muscle. Shiatsu massager will deeply touch your aching muscle just like human hands*ADJUSTABLE INTENSITY-- Nursal neck massager has 3 strength levels (low-medium-high). It is easy to get the right position and appropriate amount of pressure to relieve your pain*4 MASSAFE BALLS AND DIRECTION CONTROL: 3D Shiatsu kneading massager with 4 deep-kneading balls, match the human body engineering design. This shiatsu massager will auto-reverse each minute for better distribution of massage effects*SAFETY AND PORTABLE: The massager will closed automatically after 15 minutes with the overheating protection device. This massager includes a UL approved power adapter and a car charger, which is convenient to take it to where you want*Hand Vibration Therapy, Adjustable Intensity and Deep-Kneading for Back, Legs and Feet Pain