The ActionHeat(TM) AA Battery Heated Gloves utilizes innovative heating technology for the perfect amount of heat and maximum comfort. Head out into the cold weather with these heated gloves and keep your hands protected from the elements with a simple on/off button. Fit: Fitted battery heated gloves Technology: Power packs (Batteries Not Included) A layer of advanced Thinsulate insulation Weather-resistant softshell Estimated Heating Time: High (Red): 120F - 5+ Hours How To Use: Power Up - Insert (4) AA batteries into each power pack Plug-In - Connect the power pack to the glove Turn On - To activate heat, turn the power switch to Specs: Weather-resistant fleece lined softshell Thermal seal provides the heating system with durability and moisture protection Cozy fleece lining for warmth and comfort Strategically place heating elements using ultra-fine fibers for advanced performance Heating system on the back of the hand Heating panels with a thermal seal delivers extra stability and moisture protection Adjustable gauntlet strap 90-Day Warranty