The Hotronic FootWarmer S4 Universal Ski Boot Heater warms your feet, no matter what footwear you are wearing, in any weather. This super powerful set up keeps your feet warm in the coldest weather with its S4 battery packs. The heating elements have 4 settings; 3 for maintenance and 1 for an extra blast of heat when it is so cold you have to jumpstart your reindeer. The battery recharger works with Hotronic S, e and m battery series, and is compatible with American, European and Canadian outlets. The powerful S4 battery is powered by NiMH AA cells, for perfect operation even in the coldest temperatures when you need them the most.
- Universal ski boot heaters keep your feet warm in any shoes
- 2 battery packs manufactured in Spring 2019
- Battery recharger
- 2 heating elements
- 2 insoles (1 size fits all)
- 1 pair of adhesive covers and strips for secure insertion