Hotronic - S4 Power Set

Your feet will stay toasty warm with this foot warmer power set. Designed to charge and distribute warmth through compatible insoles. You&';ll have long lasting comfort in the coldest of temperatures. For use with Hotronic&';s pre-wired BD Anatomic Insoles or with Heating Elements as installed in Hotronic&';s One Size Fits All Heat Ready Insoles, Semi Custom Heat Ready Insoles, or on custom insoles, orthotics, or insoles of one&';s own choice. Features Compatible with all S, e, and m series battery packs Advanced charging technology prevents overcharging damage Recharger LED light indicates recharging mode and charge status Three base level settings for comfrot and warmth Additional timed setting for an extra blast of heat Includes 2 battery packs and 1 recharger Specifications Global input range of 100V to 240V Battery cells: NiMH AA Meets full standards and approval from US and Canadian ETL as well as Eropean CE