This Zyllion Shiatsu Back & Neck Heated Massager makes relieving sore muscles easier. It features powerful deep-kneading Shiatsu massage nodes that are designed to relax overused and tight muscles. The advanced heating function can be turned on to soothe aching muscles effortlessly. It's adjustable to choose from 3 different speeds and which direction you want the nodes to rotate. This massager fits perfectly behind the neck and contours to different parts of your body, and works great at alleviating pain from the shoulders, back, lumbar, and neck. Its comfortable, ergonomic, and therapeutic.