Feature:1. Polyester Fiber Material: This heated sleeping bag is made of premium polyester fiber material, ensuring a soft and comfortable experience while being durable and long lasting.2. Three Level Temperature Adjustment: The warmth is evenly distributed, providing a comfortable body sensation and effectively protecting against cold. With three levels of temperature adjustment, you can customize the warmth to your preference for optimal comfort.3. USB Powered: Powered by USB, this heated sleeping bag uses a safe voltage of 5V 2A, allowing you to use it anytime, anywhere. It is simple and easy to operate.4. Comfortable Fit: With adjustable elastic cord, you can tighten the sleeping bag around your neck, preventing cold wind from entering and minimizing heat loss for a snug and comfortable fit.5. Wide Applicability: This heated sleeping bag is suitable for various environments such as hotels, train berths, outdoor camping, hiking, road trips, business travels, fishing, and everyday home use. Its versatility makes it a must have for various occasions.Specification:Item Type: Heated Sleeping BagMaterial: Polyester fiberWeight: Approx. 1668g/58.8ozColor: Black and orange.Package List:1 x Heated Sleeping Bag1 x Storage Bag