Thermic says:

Powersocks Heat Fusion Outdoor are unisex heated socks for outdoor activities such as hiking. Technical, soft and breathable, they efficiently wick away moisture thanks to their specific micro-channel construction. Made from Merino wool, these outdoor heat socks also provide maximum comfort on the sensitive areas of the foot, namely the shin, calf and instep.

The Heat Fusion Outdoor Socks come with a pair of S-Pack 700B batteries, designed to provide up to 12 hours of warmth during your winter outings. These batteries are equipped with Bluetooth technology, so you can control the heating of your socks from your smartphone.

This set contains :

• 1 pair of Powersocks Heat Fusion Outdoor socks
• 2 S-Pack 700B batteries

Heat Fusion Outdoor technical specifications :

• Breathable socks with a tight fit
• Quick and easy to attach batteries with snaps.
• Heel and toe reinforcements
• Heat Fusion technology: for diffusion and heating all around the toes.

S-Pack 700B technical specifications :

• Up to 12 hours of heat
• USB charging cable included
• USB mains charger not included
• Compatible with all Thermic heated socks
• Bluetooth compatible: control the heat from your smartphone