describe:1. Warm and soft material: Made of high-quality skin-friendly polyester fiber material, it is super soft and comfortable to use while ensuring long-lasting warmth, perfect for cold autumn and winter.2. USB power supply: Designed with a USB interface, the heated sleeping bag can be powered by a computer, mobile power supply, car charger, etc.3. Multi-purpose: The heated sleeping bag can also be used as a sofa seat cushion, heated blanket, heated car seat cushion, etc.4. Constant temperature 45 degrees: Once heated to 45C, it remains at 45C, which is easy to carry and does not take up too much storage space. Perfect for outdoor activities such as hiking, traveling, camping, mountain climbing and hunting.5. Warm gift: Simple and elegant in appearance, it is also an ideal gift choice for children, wife, friends, grandparents or colleagues on birthdays or Christmas.Specification:Material: polyester fiberProduct color: black, gray, blueProduct Dimensions: 6.56 x 2.62 ft (200 x 80 cm), 6.56 x 5.25 ft (expanded: 200 x 160 cm)Product weight: 920 gramsRated power: 10 wattsRated voltage: 5 voltspacking list:1 USB heated sleeping bag