Features:[Three-year temperature control]Third gear temperature 60, long-press the heating button for 2 seconds; Second gear temperature 50, short press the heating button; First gear temperature 40, short press the heating button.[Security] Graphene chip, precise heating technology, ensure the safety of power supply, and give you enough sense of security. Fluffy material, skin-friendly, soft, and comfortable. Separate design, USB port with cover, waterproof, and easy to clean.[Easy to use] With a USB port, it can be powered by a power bank. There is a pocket for a power bank inside the scarf, which is very convenient.[Indoor and outdoor use]: Suitable for indoor and outdoor activities to prevent frostbite in cold weather and give you warmth! It is the best gift for relatives, friends.[Warranty]: If there are any problems, please contact our store in time. We will give you a satisfactory solution.Specifications:Item: Heated scarf.Main material: Fluff.Color optional: Khaki; black & white.Rated power: 5W.Recommend power output: 5V/2A.Rated voltage: 5V.Heating temperature: 40/50/60.Heated scarf size: 70*10cm.Note:* When washing, you must make sure that the power bank has been removed. After washing, it is recommended to dry naturally before use.* If you feel discomfort during use, pls stop using it immediately.* There could be some deviations due to manual measurement or slight color difference owing to photographing condition. Thank you for your understanding.Package information:Package weight: 126gPlastic packagePacking list:1* Heated scarfNot include USB cable and power bank1* User manual