<p>Power up your warmth with the RedHead® Web-Enabled 5V Battery-Heated Handwarmer Muff. This RedHead muff has integrated heating elements for customizable warmth on demand, now with web-enabled connectivity. 3 modes give you 105°F heat for up to 6 hours, 115°F up to 4.5 hours, or 125°F up to 3 hours. The waist belt adjusts up to 55" in circumference, and the ribbed cuffs seal in the heat. Watertight zipper hardware secures the 6,000mAh 5V battery (included). 300-gram knit fleece. 100% polyester. Machine wash without battery. Imported.</p> <ul> <li>100% polyester</li> <li>Built-in heating element</li> <li>Web-enabled connectivity</li> <li>3 adjustable heating levels for on-demand warmth up to 6 hours</li> <li>Knit 300-gram fleece</li> <li>Adjustable waist belt: up to 55" circumfrence</li> <li>Watertight zipper hardware on battery pocket</li> <li>Ribbed cuffs</li> </ul>