We have two large muscle groups in the neck and shoulder, the trapezius and the levator scapulae. For these two muscles, people who have been sitting for a long time will often experience muscle stiffness and even pain. And massage gun for shoulder impingement can give excellent massage over these two muscle areas. As a professional massage gun manufacturer, Beoka provides quality massage guns for frozen shoulder and shoulder bursitis. Feel free to contact at any time.