Using the top technology on the market, Gerbing has reinvented the glove liner. Using a powerful 7V heating system that lines all the fingers, you will be 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.The heating elements are perfectly positioned along your fingers and thumbs so the heat circulates throughout your entire hand for complete comfort.The Gerbing glove liners have a 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.HOW TO USE:Charge Up – Fully charge batteries with provided charger kit.Plug-In – Connect the battery to the plug located in the pocket.Turn On – Press and hold the touch-button control on the wrist for 3-5 seconds. Press touch button to adjust the temperature.Features:The onboard temperature control button allows easy access to the 3 heat settings providing adjustable warmthStrategically placed heating elements use ultra-fine fibers for optimal heating performanceAn integrated heating system located along the fingers and thumbHighly versatile fitted construction fits comfortably under most gloves or mittens for optimal heat transfer.Moisture-wicking polyester & spandex material blend provides warmth and comfortWaterproof zippered battery pocket stores a rechargeable lithium-polymer batteryEstimated Heating Times:High (Red): 150F - 2+ HoursMedium (Yellow): 130F - 3+ HoursLow (Green): 110F - 5+ HoursMaterial Contents:Glove: 92% Polyester, 8% SpandexCuff :75% SBR, 25% PolyesterHigh-quality stretchable fabric provides lightweight warmth, comfort, and versatilityIncludes:(2) Gerbing 7V Battery Heated Glove Liners w/ heated fingers(2) Rechargeable 7V 2200mAh Batteries(1) Charger KitShipping Note: Ships via ground transportation in USA lower 48 states only, air shipping not available due to air regulations. We are not able to ship internationally or to Canada due to shipping regulations. WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov This warning is being provided to comply with the State of California's Proposition 65.