GERBING HEATED CLOTHING 7V Battery Heated Sock Liner - Small/Medium GERSKLN7VSM

7V Battery Heated Sock Liner - Small/Medium
Heats both the top and bottom of your foot, Microwire heating elements deliver evenly distributed heat, Lifetime warranty on the heating elements , Moisture-wicking Fabric , Special long cut pulls over your calf to fit any boot or shoe , Touch-Button Temperature Control, Estimated Heating Times:, High (Red): 140F - 3 Hours, Medium (White): 120F - 5 Hours, Low (Blue): 100F 7 - Hours, Includes:, Two 7V Sock Liners, Two 7V 2,200 mAh Batteries, 7V Dual Charger