Power supply mode: USB plug-in useProduct Voltage: 5VHeating pads: 8 piecesSoft fabric: double-sided coral velvet fabric, warm, comfortable, super soft. The internal heating body is made of high-grade composite fiber, which can be heated quickly, safe and stable.Wide range of use: this heated shawl can be plugged into any USB port, very convenient.FAST HEATING: 3 temperatures are adjustable (45-65), just one button to switch.Safety and Quality Assurance: quality and safety assurance, temperature control, overheat protection and short circuit protection design, so you can rest easily.Suitable occasions: perfect for camping, traveling, outdoor walking, office, home, etc.Temperature gears: 3 gears: high-grade red light 65, mid-range white light 55, low-grade blue light 45