In addition to relieving headaches and neck stiffness, the device helps reduce stress and tension in the shoulder and neck region. Both the car and the house use it. The device's advantages include: • Increasing joint flexibility and movement; • Improving blood circulation; • Reducing fatigue and exhaustion; • Improving muscle strength and relieving contractions and spasms; • Using a heat feature to relax and relieve stiff muscles. You can use it in the office, at home, and in your car.