Gerbing 7V Heated Glove Liners The Gerbing 7V Heated Glove Liners offer effective warmth through a 7V heating system that encompasses each finger, delivering comfort during outdoor activities. Their slim, stretchable design with an extended cuff allows for seamless integration under other gloves, distributing heat throughout the fingers and thumbs for comprehensive hand warmth. Capable of achieving temperatures as high as 150F and providing over 5 hours of heat, they feature an easy-to-use control button for adjusting through three heat settings. Constructed from a blend of 92 polyester and 8 spandex, these liners are not only comfortable but also excel in moisture management. Equipped with a waterproof battery compartment, two rechargeable batteries, and a charger kit, they are indispensable for battling the cold. Features: Using a powerful 7V heating system that lines all the fingers, keeps warm and comfortable for all outdoor activities With the thin, stretchy design, and extended gauntlet, the 7V Gerbing glove liners are meant to be worn under other gloves for added warmth Heating elements are perfectly positioned along fingers and thumbs so the heat circulates throughout your entire hand for complete comfort Gloves will reach a maximum temperature of 150 F and can last up to 5+ hours Temperature control button allows easy access to the 3 heat settings providing adjustable warmth Glove: 92 Polyester / 8 Spandex and Cuff: 75 Styrene-butadiene rubber (Sbr) / 25Polyester Strategically placed heating elements use ultra-fine fibers for optimal heating performance Integrated heating system located along the fingers and thumb Highly versatile fitted construction fits comfortably under most gloves or mittens for optimal heat transfer Moisture-wicking polyester & spandex material blend provides warmth and comfort Waterproof zippered battery pocket stores a rechargeable lithium-polymer battery Hand wash only and lay dry High-quality stretchable fabric provides lightweight warmth, comfort and versatility Includes: two rechargeable 7V 2200mAh Batteries and one charger kit Estimated Heating Times: High (Red): 150 F - 2+ Hours Medium (Yellow): 130 F - 3+ Hours Low (Green): 110 F - 5+ Hours