[Long Lasting Warmth]The battery glove lines with 7.6V 2600MAH RechargeableLithium polymer Batteries. Large capacity battery can keep more electric and can let the heated gloves work up to 8 hours(full charged).If doing sports or work in outside long time,suggest to buy extra batteries. Heated glove liner with 3 heat setting controller for you adjust the temperature easily.[Quick Heated&Touch Sensor] Those electric glove liners with touch sensors on forefinger and thumb, allows you to use your phones without taking off the gloves. Keep your hands warm and convenient to use.[Soft Glove Liner] Heated thin liner are made of high quality and very soft Lycra, and the inside with breathable comfort Fleece. It can absorbs moisture to keep your hands dry and warm.This thin line can wear with other gloves and not clunky at all.[Smart Temperature Control & Battery Indicator]The rechargeable hand warmer gloves feature a one-button control with three temperature settings: High (red light, 149°F), Medium (blue light, 131°F), and Low (green light, 113°F). A 4-level battery indicator (100%, 75%, 50%, 25%) allows easy monitoring of remaining power, making operation simple and intuitive.[Suitable for Multiple Sports]: This black heat gloves are great for indoor and outdoor activities like work, sports, skiing, ice skating, snowboarding, sledding, snowshoeing, camping, hiking, hunting, snow fishing, cycling, skating, motorcycle etc. If the outdoor temperature is below 5â, it's recommended to wear another pair of ordinary cotton gloves outside to achieve better warmth.M,L,XLPlain