DescriptionMade from an ultra-soft 100% polyester micro fleece, the FNDN heated scarf is powered by a rechargeable 7V Li-ion battery. Select your optimal level of warmth with three (3) heat settings controlled by a simple push-button. It takes about 2 hours for a full charge (using the included USB charging cable) and each charge lasts for up to 4.5 hours of continuous heat. This unisex scarf is one-size-fits-all which makes it the perfect gift idea for the hard to shop for the person who already has it all. It’s time to take the pain out of your cold-weather commutes or walking your dog in the winter!