Warm Soft Material- Made of premium faux rabbit fur and high-grade skin-friendly polyester materials, the warm scarf is super soft and comfortable to wear and also ensures long-lasting warmth. Perfect for cold Autumn and Winter days. Built-in Heating Pad 3 Temperature Modes- Built in a heating pad, which is constructed from carbon fiber, the winter scarf can be quickly heated up in 3 seconds. And it has 3 levels of temperatures. When the switch shows the red light, the scarf temperature is in the high range: 40°C-55°C. When it shows the blue light, the temperature is in the middle range: 40°C-50°C. And when it shows the white light, the temperature is at a low range: 35°C-40°C. You can adjust according to your needs. USB Powered Timer Function- This neck wrap can be powered by connecting it to a portable power bank Not Included via a USB cable. There is a hidden zippered pocket inside the scarf, so you can put a mini power supply in, ready to heat the scarf at any time. A Must-Have for Cold Winter - can effectively keep the freezing wind away on cold winter days. Perfect for indoor activities and outdoor sports, such as studying, working, skiing, hiking, or climbing. And with a simple but elegant outlook, it is also an ideal gift choice for your kids, wife, friends, grandparents, or work colleagues on birthdays or Christmas.