PROSmart Heated Socks Rechargeable Electric Foot Warmer with 3 7v Battery Gray L

NO MORE COLD FEED,BUY NOW! Good for circulation problems! NO more HEAVY battery! Try Prosmart Heated socks,make it as your foot/toe warmer and hot pad! SOFT Carbon fiber heated element Light Li-ion batteries offer 50% lighter,Portable Washable Machine wash with a laundry bag Long lasting 3 hours running time for each charging Good Bargain Rechargeable Li-ion batteries Features Power supply: 3.7V 2200mA Li-ion battery Material: Wool and Spandex thick socks Size: Free size 24cm-27cm,unisex Heated area: Forefoot, and toes Use condition: Lasting for 3 hours Color: Black and Gray Package A pair of heated socks;Two pair of li-polymer batteries(3.7v 2200mah);A charger;An user manual Q:Can this "Heated Socks" machine washable? A: Yes.Remember take out the battery(or battery holder) and put the products in a suitably size laundry bag before washing. Q:How is the warranty for the heated socks? A:One Year Warranty for the Heated element (Not included the socks).