100% Brand New and Quality Guaranteed. Blue is L size for Men Orange is M size for Women Features: * Battery Voltage:3.7V Li-ion Battery * Battery Capacity:2000mAh * Keep Warming Time:About 3-4 Hour. * Heating Area: fingers and hand back * Size & Color : Orange is M size， Blue is L size * Outer Materials:EVA environment protection layer+ Cotton / Polyester / Spandex+Leather * Voltage: 3.7V * charging time(1pcs):2-3H * Heating constant temperature:30-45 degree * Certifications:CE & RoHs Specification: * Material: Cotton, Spandex * Voltage: 3.7V * Power:2X 2000MAh Li-ion Battery (Battery including) Package Includes: 2 x Electric Heating Gloves (1 Pair) 2 x 2000MAh Li-ion Battery 1 x USB Charger 1 x US Plug or EU Plug Lithium battery charging method: Plug the charger into the USB interface., plug in the power socket, the charger display green light, Plug the battery into the charger., When charging indicator light red, when the battery is fully charged, the charging device of the light turned green. Gloves use operation steps Will charge the battery into the glove zipper bag, the battery's DC plug in the glove inside the power line, pull on the zipper, the glove starts to heat the work. If you do not need to heat, unplug the battery plug. Matters needing attention 1, when not in use, please unplug the power interface, avoid long time heating, plug the DC connector power line, please hold the plug, please don't pull the wire, so as not to pull off. 2, the elderly and children need to use in the custody, to avoid children swallowing batteries, causing danger. 3, is prohibited on the electric products of the spare parts to disassemble and modification! Please use the original accessories 4, cleaning products, please use the brush gently scrub, not be machine washable, dry. 5, if the DC connection head accidentally into the water, please stop using immediately, and then use the air dry. 6, if the product is not used in a long time, please do not use the case of lithium batteries in a room temperature dry environment, please do not disassemble the battery or placed in the fire, not to make metal products contact or short circuit electrode, to avoid placing in the environment of overheating or moisture corrosion. 7, if the product has any quality and safety hazards, please stop using.