Features: Advanced heating,heating pad features latest alloy heating wire, deliver heat to your body to improve blood circulations and relax the muscles, greatly relieve pains from back, muscles pains, etc. Heating performanceS safety, fast warming,no need waiting,3 heat settings for you to customize the intensity of heat,3 vibrations mode ,for your safety, it features accurate intelligent constant temperature control system . USB rechargeable,powered by direct current 5v portable battery, or low voltages power lines, such as laptops, usb adapter, etc. Widely application,adjust elastic straps for various waistlines.it is suitable for multiple body parts hot compress, especially great for waist, abdomen and more relieve menstrual pains. Portable washable,soft fabric,lightweight,great for indoor & outdoor use.hand washable, air drying completely before use. Specifications: Material:ABS+PC+Lint Package Includes: 1Piece Electric Waist Belt Device note: Please allow 1-2cm errors due to manual measurement. Due to the difference betweeen different monitors,the picture may not reflect the actual color of the item.