Features: USB Heated Scarf，usb interface, can be used everywhere, reused fiber heating wire, used as heating material, directly washed by hand, dried in cool place, can not be exposed to the sun- or dried, USB cable connected to the hat and scarf at the sametime, The product does not have power storage function, and the product only heats up when connected to the power supply, but not when unplugged. The fleecy hat and scarf can provide warmth , give comprehensive protection to the head-, face, neck, make you spend warm winter. Stretchable & Elastic: size fits most, both the hat and the neckerchief are knitted, can be stretched to fit more, wrap around head or neck snugly. Specifications: Material: Yarn Size：Approx.Hat 25x22cm/9.84x8.66in,Neck Warmer 24x20cm/9.45x7.87in Color:Blue/Gray/Tangerine Package Includes: 1x USB Heated Scarf 1xUSB Heated Beanie note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.