Whether you’re at work or play, cold feet are not fun. The ThermaCELL Heated Insoles foot warmers keep your feet comfortably warm. They maintain a steady temperature inside your shoes or boots, keeping your feet around normal body temperature. The ThermaCELL foot warmers are controlled by a wireless remote control. You can adjust the temperature via remote to three temperature settings, no heat, medium (100 degrees) or high (111 degrees).