A neck and back massager is a handheld or wearable device designed to relieve muscle tension and stiffness along the cervical spine, shoulders, and upper back. Most use rotating nodes, kneading rollers, or vibration with optional heat to mimic deep-tissue massage and improve circulation in hard-to-reach areas. You’ll find U-shaped models that hang around the neck, handheld wands, and massage pillows that strap to chairs for hands-free use. They’re used at home or at a desk for quick relief after long hours of sitting or driving.