Fit & Design: Weather resistant softshell & cozy fleece lining provides warmth, comfort, and versatility Strategically placed heating elements use ultra-fine fibers for optimal heating performance An integrated heating system located on the back of the hand Heating panels encapsulated with a thermal seal provides additional durability & moisture protection Adjustable gauntlet strap Technology: Weather-resistant fleece lined softshell A layer of advanced Thinsulate insulation A thermal seal provides the heating system with durability & moisture protection How To Use: Power Up - Insert (3) AA batteries into each power pack Plug-In - Connect the power pack to the mitten Turn On - To activate heat, click the red button to turn on Estimated Heating Time: High (Red): 130F - 5+ Hours Includes: (2) ActionHeat Heated mittens (2) Power packs (Batteries Not Included)