[4 Pairs Included] Heated Socks with Two 8000mAh Large Capacity Batteries, USB Rechargeable, 40-80℃ Rapid Heating, 4-Level Temperature Adjustment, Highly Elastic Design, Washable, Cold Weather Protection, Winter Heater Socks, Unisex, with Laundry Bag and Japanese Instruction Manual Heated socks equipped with an 8000mAh battery, providing warmth for up to 10 hours. - Quantity: Set of 4 pairs - Battery Capacity: 8000mAh - Heating Time: Up to 10 hours - Temperature Settings: 4 adjustable levels - Usage Scenarios: Outdoor activities, sports, everyday use Thank you for viewing.