Tourmaster heated gear was born from the world of high-tech motorcycle apparel, and can now be enjoyed while touring the countryside or simply trying to stay warm around the house. These powerful heated garments include 7.4V lithium-ion batteries that give you 2+ hours on high heat that is guaranteed to keep you warmer than ever before. Synergy 7.4V Textile Men's Heated Gloves. Features: New four-level push button 7.4v design; Heavyweight polyester and spandex blend fabric used in the backhand, fingers, forchettes, and gauntlet; Microfiber overlays incorporated into the palm thumbs for added durability; Ergonomically positioned gauntlet zipper pockets comfortably store battery packs; 5mm memory foam padded knuckles and accordion stretch fingers provide added protection without sacrificing comfort; HiPora waterproof, breathable membrane to block out moisture; 80g 100% polyester insulation keeps the cold out and warmth in; Fleece lining for a warm and luxurious fit and feel; Touchscreen compatible index fingers and thumbs; Dual closure gauntlet design keeps the warmth in and the elements out; Reflective piping on outside of gauntlet cuff helps increase nighttime visibility; Battery life ranges from 2.2 hours on high to 8 hours on low temperature setting; Surface temperature ranges of 135\xB0/100%, 120\xB0/75%, 105\xB0/50%, 90\xB0/25%; Includes two 7.4v 2.0Ah rechargeable lithium-ion batteries and dual charger (packaged separately);