Unisex Electric USB Heated Shoe Insoles with Ankle Bracelet Battery

RECHARGABLE HIGH CAPACITY: Insoels come with rechargeable lithium ion polymer batteries mounted to your ankle via velcro tape. Power bank, mobile phone, AC adapter chargeable. Batteries offer 6-12 continuous hours of heating when fully charged. Comes with double line charger, enables charging of both batteries from same power source.
CARBON FIBER HEATING: New technology of heat application via carbon fiber, safe, reliable and comfortable. Faster heating up, large heating area and even heat distribution.
THREE LEVELS OPERATION: Features three different level of heating to easily adjust to weather condition and temperature. Simple press of a button to change the heating level.
CONVENIENT & COMFORTABLE DESIGN: Made from carbon fiber material for extended durability.  Soft, breathable and comfortable to your feet and can fit in any shoes or winter boots. Insoles can be bent by 180 degrees, easily cleanable with brush (Non-macine washable).