NIUNIU Features: 1. Designed with breathable and washable fabric, it is comfortable to wear and keep warm at the same time. 2. Effectively relieve abdominal pain-after using a warm belt for a few minutes, it immediately relieves abdominal pain, menstrual cramps, stomach pain and other discomforts. 3. Stay warm anytime, anywhere-this warm belt can keep you warm anytime, anywhere. When you feel cold or feel uncomfortable in your abdomen, please wear your seat belt easily. Can be used in the workplace, outdoors or at home. 4. Easy to wear, made of highly durable fabric and graphene. The belt can be washed and used repeatedly. Easily wear and tie with hook and loop for close-fitting. 5. It can be used and fully charged through USB charging. Charge from any source such as mobile power, computer. Instructions: 1. First wear the belt, this product can warm the waist and abdomen, you can wear it according to your needs; 2. Please choose a mobile power bank (5000mAh) for use. The belt has a bag that can store the mobile power bank. You can put the small mobile power bank in the bag, which will facilitate your movement; 3. After the belt is inserted into the power bank, press and hold the belt switch button. The light is on to indicate that the product is already in working condition. The lights of different colors represent different gears. The red light represents 65 degrees high temperature, 55 degrees medium temperature, and 45 degrees white low temperature. 4. The basic waistband has three levels of heat compress function, and the upgraded model has three levels of heat compress and vibration function; Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement. Specification: Main material:Heating fiber, Graphene Heating temperature: 3-gear temperature: 45degC (blue light) 55degC (white lights) 65degC (red light) colour: pink Include: 1 x Heating Belt