The main function of the cervical vertebra massager is to relieve muscle soreness and promote blood circulation.Mainly suitable for students:often looking down at the phone or playing on the computer, or muscle soreness caused by homework; office workers, neck muscle stiffness and soreness caused by working at the computer for a long time; elders, often caused by years of fatigue Sexual soreness; daily nursing and health care, you can also take it with you when you are watching dramas, working, and playing games for a long time, and you don’t need wait until you feel sore. It can also relieve soreness when stiff neck. So cervical neck massager is still very useful for neck pain.