1. Advanced Heat Therapy: The heating pad uses the latest graphene heating chip to release far infrared heat and provide heat to the body. It can be heated ly and quickly in one minute. Suitable for menstrual pain, back pain, stomach cold, sore muscles and other pain. 2. Heating performance: 3 seconds fast warmup, no waiting required; up to 95% heating surface ensure an even and comfortable temperature; 3 heat settings that allow you to individually adjust the intensity of the heat; press the switch on/off for 3 seconds; press the switch quickly to change the mode: 113°F (blue), 131°F (white), 149°F (red). 3. SAFETY: Builtin battery. DC 5V input You can use it with a USB cable and an adapter. It has a precise, intelligent constant temperature control system and automatically switches to the low temperature setting after 30 minutes of operation. 4.Widely Application The heated belt is made of high quality soft lycra fabric, which is lightweight and breathable, and is comfortable and warm when close to the skin. Adjustable Velcro closure and elastic waistband for a waist circumference of up to 40 inches: 2340 inches. Can be used for multiple body parts.