California Heat 7V Lithium-Ion Batter Sock Liners

*The socks begin warming your feet within seconds using a compact, rechargeable 7V lithium-ion battery. The advanced heating technology allows you to maintain a constant level of thermal comfort and protection while enjoying your favorite outdoor activities.*

* Constructed of thin, lightweight Lycra Spandex
* Moisture wicking plus wind & water resistant
* Features a wide elastic band with a Velcro strap for an adjustable, comfortable fit around your calves
* Heating elements are located at the top of your foot then wrap around your toes and under your foot
* Includes a y-harness to run up your legs and connect to 7V batteries
* 2 batteries combined time 2-8 hours (depending on setting)
* Max Heat 135° F
* Package Includes Everything Needed For Operation: Dual Wall Charger, (60”) Y-Harness, (2) * 7.4V / 3500mAh Rechargeable Lithium-Ion Batteries