Control the temperature of your gloves with the built-in temperature control system. There are three temperature levels available - low, medium and high. Use the control button to switch between modes. The gloves are powered by batteries. Thanks to their wireless design, you can enjoy their soothing warmth anywhere - in the park, outside your home, or perhaps while hiking. Protect the batteries thanks to the two battery boxes included in the set. Place them in a battery bag with a protective zipper to protect them from moisture and external weather conditions.