The heated belt is made of graphene and charges using USB. After the graphene is charged, it starts to heat up and has a thermotherapy effect. The use of far-infrared heating elements can provide complete pain relief and relaxation for the muscles, relieve pressure, and relieve low back pain in a targeted manner. The heated belt has 3 levels of adjustment, you can adjust the temperature mode according to your needs, long press the button for 3 seconds to turn on/off. Short press the button once to change the mode. You can use this portable heating harness on your lower back, lower back, waist, stomach, spine to stimulate blood circulation, relieve stress, tension, muscle pain, stiffness or cramps, etc. Great for birthday gifts, Thanksgiving and Christmas, Father’s Day and Mother’s Day gifts.