Energy source battery powered, electric Battery capacity 3200mAh Spandex Fabric Waterproof Touch Screen Gloves 【1 button 3 temperature control】: The on/off button on the back of the glove makes it more convenient to adjust the temperature anytime, anywhere. Heated area on the back of the glove 【Powered by 2 rechargeable 3.7V 3200mAh Li-polymer batteries】: The battery is included in the package, small capacity battery operating gloves, safe and explosion-proof. Mainly to warm the back of your hand and radiate to heat your fingers. Very warm for those with long cold winter days Unisex Heated Gloves 【Premium Material and Special Design】: This heated glove is made of waterproof coated fabric; Comfortable fabric cotton; Touch screen fingertips allow you to easily touch your phone without taking off the glove; Reinforced PU leather for better grip ;Adjustable wrist shell protects hands from heat and wind 【Welcome Gloves for Warm Winter Gifts】: Suitable for Raynaud's disease, diabetic neuropathy, poor blood circulation, relieve cold hands, return to warmth and bake hands, it is the best winter gift for parents, family, friends... ...suitable for all kinds of outdoor sports like hiking, camping, fishing, hunting, running, horseback riding, skiing, mountain climbing, driving, etc.