[Heated Back Waistband Design] - Adjustable heated wrap around waistband with widely taped straps, fits snugly around waist, stomach, lower back, legs, knees and neck. The total length is 42 inches. Perfect for Birthday Gift, Mother’s Day, Father’s Day, Thanksgiving Gift and Christmas Gift. [5 Level Heating Controller] - Red+Green(40°C/104°F), Red+Blue(50°C/122°F), Blue(60°C/140°F), Green(70°C/158°F) ), Red (80°C/176°F) to set the desired heat level. [Widely Application]] - You can use the electric heating pads on your lumbar, back, shoulders, wrists, stomach, knees or feet to promote blood circulation, relieve stress, tension , the pain muscles, stiffness or cramps, etc. [Powerful 7.4V Rechargeable Lipo Battery] - Most back pain belts in the market are powered by 5V battery, while what we use is 7.4V, which could offer enough power to the portable back warmer. [Security] - Integrated thermal protection module. Once it overheats, it would shut down until the heat returns to standard
