Use the charger kit to get the full charged batteries. Place the heat shoe insoles in shoes or boots. Choose the desired heat setting by pressing "I" "II" or "III" on the controller or on the back of the insoles.
FEATURES:
FOOT WARMER: The heat insoles are designed to keep your feet warm in low-temperature zones. Whether you are hiking, hunting or on a ski trip, these insoles protect your feet from cold winter winds.
HEATING SYSTEM: The electric heated insoles have strategically placed ultra-fine heating panels under the toes. With three different heat settings, these insoles can work up to 8+ hours while reaching up to 140F.
HEAT SETTINGS: The heating insoles have a built-in 3.7V rechargeable batteries. There is different estimated heating time for different heat levels. High (III): 130F – 3+ Hours Medium (II): 110F - 5+ Hours Low (I): 110F – 8+ Hours.
