Gerbing 7V Battery Heated Sock Liners

The Gerbing 7V heated sock liners are the best battery-powered socks available. Equipped with powerful Gerbing 2200 mAh batteries and powered by Gerbing's patented microwire heating elements,  these socks will provide up to 7 hours of temperatures up to 150° F. The heating elements cover both the top and the bottom of your foot for maximum warmth during all of your winter activities.Features & Benefits: 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 HOW TO USE: Charge Up– Fully charge power bank with provided charger cable. Plug-In – Connect the battery to the plug coming out of the sock Turn On– Press and hold touch-button control. Press the touch button to adjust the temperature. Material Content:87% Polyester, 13% SpandexEstimated Heating Times: High(Red): 140F