100% brand new and high qualityMade of high quality cotton and elastic fiber, thickened warm and comfortable to wear, absorbent, breathable.Style A: heated sock comes with two 2200mAh rechargeable lithium polymer battery.Suitable for men and women. Long tube cotton socks can cover the calf, widely matched, warm and stylish3 temperature settings: the maximum temperature can reach 50 C.3 settings temperature controller. Low temperature 40 C, mid-range temperature 45 C, high temperature 50 C.There is a battery bag for the battery. An ideal solution for winter problems such as long-term cold, poor blood circulation, and arthritis.It is ideal for outdoor sports such as hunting, skiing, fishing, hiking and any other outdoor sports. Specification:Material: 90% Cotton+10% Elastic FiberBattery Capacity: 2200mAhOutput: 3.7V-2.0AInput: 5V-0.1ACharging Time: about 3.5 hoursUsing Time: 6-7 hours after fully charged(depending on frequency of use and temperature setting)Power Supply: 2 x Rechargeable Battery(Included)Heating Temperature: 40-50Recommended Foot Size: 34-44Package Length: app. 29cm/11.42inFoot Bottom Length: app. 23cm/9.06inOptional Style: A With Batteries, B Without BatteriesOptional Color: Black+Gray, Black, Gray+Blue, Gray+BlackQuantity: 1 set Note:Transition: 1cm=10mm=0.39inchNo retail package.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank youPlease note that low temperature washed,do not bleach and place under the blazing sun for quite a long time. Package includes:Style A: 1 pair(2pcs) x Heated Socks + 2 pcs x Rechargeable BatteryStyle B: 1 pair(2pcs) x Socks(other accessories demo in the picture are not included)