Back Massager uses physical, mechanical, or electrical pulse technology to simulate manual massage movements, precisely relaxing back muscle groups. It features an ergonomic curved design, multiple massage heads, adjustable intensity and heating, and a portable or chair-back integrated structure. It can deeply relieve back and waist muscle soreness and improve blood circulation around the spine. It also helps correct poor posture and alleviate stiffness caused by prolonged sitting or fatigue, providing users with an efficient and convenient home massage experience. The Back Massager is used in scenarios such as office workers who sit for long periods of time, elderly back care, driver fatigue relief, and post-exercise muscle recovery. It is an important relaxation tool in modern healthy living.