• Battery pouch is attached to sock, powered six batteries ( Not included ).
• Warm socks cover your feet and provide great protection in terms of warmth. Its heating temperature is up to 50 degrees and may last for hours even if you do not change the battery.
• Convenient to store and portable to take outside for travel. Suitable for skiing, climbing, skating, cycling in cold winter.
• Made from , it is skin-friendly and could be folded freely. Safe to use. No fear of washing and no leakage of electricity.
• thermal control. 3 levels heat setting helps you adjust your favorite temperature.