California Heat's Outdoor Pro Gloves begin warming your hand within seconds using a compact, rechargeable 7V Li-Ion battery. The advanced heating technology allows you to maintain a constant level of thermal comfort and protection from frigid conditions. Features: Constructed of Kevlar and leather, plus flexible Thinsulate® insulation Includes a trigger finger on both gloves for use with hunting & shooting Heating elements are located on the top and bottom of hand, from wrist to finger tips, with an extended gauntlet to comfortably fit over your jacket Waterproof & windproof with breathable Hipora® Batteries last 3-10 hours (depending on setting) Max Heat 135° F Lifetime warranty on the Finewire™ heating elements & plugs Option to pair with a Y-Harness to connect to a single battery (Sold Separately) Includes: Two (2) 3500 mAh 7V rechargeable lithium-ion battery Dual wall charger California Heat 7V Battery Heated Kevlar Shell Pro Heated Gloves