Features: 1. Warm and Soft Material: Made of premium skin-friendly polyester fiber materials, super soft comftable to use also ensures long-lasting warmth, perfect f cold autumn winter days. 2. USB Powered: With the USB interface design, the heated sleep bag can be powered via your PC, power bank, car charger, etc. 3. Multipurpose: Heated sleeping bag can also be used as sofa seat cushion, heated blanket, heated car seat cushion, etc. 4. Constant Temperature 45 Degrees: Once heated to 45C, it stays at 45C, it easy to carry won't take up too much stage space. Perfect f outdo activities like hiking, travelling, camping, climbing, hunting. 5. Warm Gift: With a simple but elegant outlook, it is also an ideal gift choice f your kids, wife, friends, grparents, wk colleagues on birthdays Christmas. Specification: Material: Polyester Fiber Product Col: Black, Grey, Blue Product Size: 200 x 80cm, Unfolded: 200 x 160cm Product Weight: 920g Rated Power: 10W Rated Voltage: 5V Package Included: 1 x USB Heated Sleeping Bag