Combines therapeutic heat and massage in an ergonomic design. Featuring a 26° spinal curve with bionic support bars and zoning technology, it delivers targeted lumbar relief with five precise temperature settings (40-60°C) through soft crystal heating panels. The built-in massage function offers three intensity levels while two adjustable elastic straps ensure a secure fit. Lightweight and breathable, it's ideal for chronic pain, muscle recovery or sedentary use, with convenient features like temperature display, auto shut-off and washable materials for all-day comfort at home or work.