Genuine goat’s leather: soft and sturdy 3 heat settings: for even, gentle heat distribution Ultra-light lithium-ion battery offering up to 10 hours of heat Heat spreads 360° around the fingers and the top of the hand Membrane 10K/10K : impermeable and breathable Compatible pocket for two batteries, doubling the heating time Ribbed cuffs Security leash: so as not to lose the mitten Thin sleeves to better fit with jackets Drawstring 1 USB Therm-ic charger cable. Wall charger not included. Sidas Ultra Heat Boost Gloves Mens