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 performance safety, fast warming,no need waiting,3 heat settings for you to customize the intensity of heat,3 vibration modes ,for your safety, it features accurate intelligent constant temperature control system . USB rechargeable,powered by for dc 5v-0.8a portable battery, or low voltage power line, such as laptops, usb adapters, etc. Widely application,adjustable 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,breathable,lightweight,great for indoor & outdoor use.hand washable, air drying completely before use. Specifications: Material:ABS Package Includes: 1 Piece 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.