Huntworth Men's Mammoth Insulated Heated Hunting Hand Muffs are something to warm your heart (and your hands). New technology gives our Mammoth Tarnen or Disruption camo hunting muffs up to four hours of continuous heat or more if you only turn them on when needed. Made with Tricot fleece bonded to a soft thick fleece and film shell and insulated with poly-fil, they're already warm to start. The removable battery-powered heat back makes the heated hand muffs even toastier. A durable strap holds them in place so you don't have to. Windproof, water resistant and with fitted fleece cuffs, this pair of muffs will see you through the most bone-chilling days at camp with the warmth you need.1 Year Limited Warranty