The Hotronic FootWarmer Power Plus e3 Custom includes three cells in each Battery Pack. The Power Plus e3 is Hotronic's most powerful, yet compact, footwarmer. The Hotronics Power Plus e3 footwarmer easily installs in a variety of footwear and transfers simply from one pair of footwear to another. The Hotronic Power Plus e3 Custom Footwarmer helps keep your feet warm while skiing, snowboarding, bicycling, horseback riding, fishing, or during other cold-temperature activities.
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