Gerbing 7V Heated Glove Liners for Men incorporate a powerful 7V heating system lining all the fingers for superior warmth and comfort during outdoor activities in cold conditions. With the thin, stretchy design, and extended gauntlet, the 7V Gerbing glove liners are meant to be worn under other gloves for added warmth. The heating elements are perfectly positioned along your fingers and thumbs, so the heat circulates throughout your entire hand for complete comfort. Gerbing 7V men's heated glove liners have touch-button technology with 3 easy-to-use heat settings. The gloves will reach a maximum temperature of 150F and can last up to 5+ hours. Strategically placed heating elements use ultra-fine fibers for optimal heating performance. Highly versatile fitted construction fits comfortably under most gloves or mittens for efficient heat transfer. Waterproof zippered battery pockets protect battery packs. Gerbing 7V men's heated glove liners includes 2 rechargeable 7V 2200mAh batteries and charger kit. Estimated Heating Times: High (Red): 150F - 2+ hours; Medium (Yellow): 130F - 3+ hours; Low (Green): 110F - 5+ hours. Glove: 92% polyester, 8% spandex. Cuff: 75% SBR, 25% polyester. Imported.Manufacturer style #: GER-GL-7V-M. 92% polyester, 8% spandex Heat circulates throughout your entire hand Touch-button technology with 3 easy-to-use heat settings Heats up to 150F and can last up to 5+ hours Strategically placed heating elements use ultra-fine fibers Highly versatile fitted construction Waterproof zippered battery pockets protect battery packs 2 rechargeable 7V 2200mAh batteries and charger kit