The Thermo Belt heated waist and kidney warmer can be widely used in cold weather, kidney problems, lower back pain, joint pain, when heating is considered a good remedy. The material is thin, elastic, soft neoprene, which can be used directly through the skin and clothes. The heating temperature can be adjusted in 3 steps, between 34 and 44 degrees Celsius. It comes with a charger and a 2700 mAh battery that can heat for up to 5 hours and can be recharged 500 times. The accessory of the kidney warmer is another approx. There is also a 5-7 cm wide rubberized extension, which can be inserted comfortably even with a really large belly size.