3.7V Powersheer® Micro Dual Battery Pack, Remote & Cable tank and 4 built-in heat zones

and 4 built-in heat zones to keep your core comfortable in cold

and a waterproof touch-control button

Finished with a rib-knit waist and heavy-duty zipper

A waterproof touch control button makes it easy to adjust heat on the go

Odorsheer™ fabric keeps things fresh

3.7V Powersheer® Micro Dual Battery Pack, Remote & Cable tank and 4 built-in heat zonesThis Dual pack of Powersheer Micro Rechargeable Li ion batteries are compatible with Fieldsheer Standard Heated Socks, Thermal Heated Socks, and Merino Heated Socks. Control your heat levels on your socks by a press of the battery or Wireless remote button to select between High, Medium and Low heat. Recharge using the included Micro USB to USB cable for hours of heat. Specifications: Two batteries, 4 button wireless remote control & Micro USB Charge