Heated Socks Rechargeable

Details: Product description: This series of electric socks are made out of cotton polyester spandex material that absorbs sweat and offer breath ability and use ultra-thin carbon heating element.  To keep you warm and comfortable all day ,perfect for hiking, hunting, ice fishing, outdoor in the cold weather . Features: Color: Black Voltage: 3.7 V Fabric: Cotton, polyester, spandex Heated Area: Front instep Battery: two 3.7V rechargeable Li-ion batteries Heat Setting: 3 Levels Temperature Setting High：Red 3-3.5 Hours medium：Orange 4.5-5 Hours Low：Green 6-6.5 Hours Packing list: 1x pair of socks 2x 3.7V Li-ion batteries 1x AC charger FAQ: Q1: Socks only heats for about 30 minutes then went off when i first use it. A:Most of batteries won't come in fully charged status so that's why you need to recharge them for at least 12 hours when you receive it. Q2:Too hot and can not wear A:You can set the socks at Temperature Setting- High (Red) first,then you can change to set it at Low (Green) s