Careslong Heating Socks Spiral Heating Three-Speed Temperature Widely Used

Specifications: Product name: Heating Socks Surface material: 51% viscose 23% nylon 26% polyester inner material: 100% nylon Battery capacity: 4000mAh Charging voltage: 5V Working current: 800mAh-1100mAh Output voltage: 3.7V Battery size: about 15.8*44*78.5mm/0.62*1.73*3.09in Battery performance: -10℃～70℃ battery can work normally battery life is 80% capacity remaining after 500 cycles Charging time: about 4.5-5 hours when fully charged (excluding ordinary mobile phone chargers) Product Size(approx): L size: tube length 33cm sole length 20cm sole width 9cm(12.99*7.87*3.54in); M size: tube length 30cm sole length 18cm sole width 8cm(11.81*7.09*3.15in) It can be machine washed adjusted to gentle cleaning or hand-washed. Take out the battery before washing! Packing List: Socks*2 Power Bank*1 USB Line*1 English Manual*1 Color Box Packaging*1 Note: Please allow slight tolerances in size due to manual measurement and lighting in photography may result in difference in color than it is in real life.