... ski gloves /Leather gloves/electric heated gloves/gloves for outdoor System composition1. Batteries. Heat energy from the Li-on battery ... charge-discharge for over 500 times.It can keep warm for 4-8 hours ,and maintain the temperature about ... ,expand capillary, eliminate microcirculation dysfunction, promote metabolism,make the skin exquisite, prevent moisture, prevent germs, delay senescence8 ...