Features: brand new and high quality Adjustable temperature settings: 3 adjustable settings can be adjusted according to your needs. Machine washable, adjust to gentle cleaning, or hand wash, remove the battery before washing Quality polyester material, wear resistant and durable, not easy to get deformed or pilling, good breathable ability. Good elastic design makes it universal for different sizes of foot. Suitable for most men and women. Great For arthritis foot and chronically cold feet and stiff joints. Give you a warm winter. Used for winter outdoor sports, such as skiing, hiking, hunting, snow shoveling, fishing, cycling, etc. Package Includes: 1 pair(2pcs) x Heated Socks 1 pair(2pcs) x 2200mAh Li-ion Battery 1 x Charging Cable Specifications: Material: Polyester Optional Color: Gray, Pink Battery Capacity: 2200mAh Tube Height: approx. 36cm/14.17in Bottom Length: approx. 23cm/9.06in Highest setting: 50 Medium setting: 45 Lowest setting: 40 Charging Time: about 3.5 hours Working Time: about 6-7 hours Quantity: 1 set note: Transition: 1cm=10mm=0.39inch No 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 you