Discreet Battery Box
Each sock comes with a discreet battery box which includes an adjustable leg strap and flexible cable. These features allow the box to be easily and discreetly positioned beneath your trouser leg, over your ski boots, or wherever is most convenient and comfortable. Each box also features an easily accessible switch which allows you to switch the heating element on, or to switch between the three heat settings, without the need to remove the batteries. The LED light on the box lights up to indicate that the heating element is turned on, and will turn red to indicate full power, or green to indicate our eco setting.