Take on the outdoors with the ActionHeat(TM) Adult 5V Battery Heated Hand Muff Warmer. This hand muff warmer features strategically placed heating panels that provide ultimate warmth for up to 5+ hours. With touch-button technology and 3 easy-to-use heat settings, it is perfect for keeping your hands warm and toasty at your next bonfire or football game. Fit One size fits most Technology Rechargeable 5V lithium-polymer batteries Lasts up to 5+ hours on a single charge Reaches up to 150deg F in under Touch-button control technology with 3 heat settings 4 LED power indicators display power banks' battery life Design Extra-large, built-in heating panels Polyester soft shell Water-resistant outer shell sheds rain and snow Waterproof battery pocket Adjustable strap Ultra-fine carbon fiber heating panels Includes 5V power bank and USB charging kit Additional Details Machine washable, gentle cycle