Experience unparalleled warmth with our Lithium Battery Powered Heated Insoles Keep Feet Warm 39-40. Designed for ultimate comfort and convenience, these insoles are equipped with a built-in lithium battery module, providing you with a reliable source of heat wherever you go.

Key Features:

• Long-lasting Warmth: Enjoy 8-9 continuous hours of runtime with fully rechargeable lithium batteries. Please note that warming time may vary based on environmental conditions.
• Comfortable Fit: Made from elastic EVA-foam, these heated insoles are soft and designed to mold to your feet, ensuring comfort all day long.
• Efficient Heating: Constructed with carbon fiber heating material, our insoles offer a high conversion rate, saving power while keeping your feet toasty.
• Waterproof & Washable: The heated insoles are made with waterproof materials and can be easily cleaned with a brush, but should not be machine washed.

Specifications include:

• Material: EVA, Velvet, Carbon fiber
• Voltage: 7.4V
• Weight: 350g (0.77 lbs)
• Package Weight: 0.41kgs / 0.91lbs
• Package Size: 29cm * 15cm * 6cm / 11.42inch * 5.91inch * 2.36inch
• Carton Weight: 9.50kgs / 20.94lbs
• Qty per Carton: 20
• Carton Size: 60cm * 32cm * 32cm / 23.62inch * 12.6inch * 12.6inch

Whether you're outdoors in the winter or just looking to keep your feet warm at home, our Lithium Battery Powered Heated Insoles Keep Feet Warm 39-40 are the perfect solution. Don't let cold feet dampen your day—order yours today and step into comfort!