Color: Black, Coffee.  Size: 45-80cm(17.71-31.49inch).  Gender: Unisex.  Material: Knit.  Weight: About 500g.  Battery: USB Charging.  Voltage: 5V.  Temperature: 40-50.  Heating material: Carbon fiber.  Function: Keep Warm, Neck Protection.     Features: 1. Material: Heated parts embedded in the scarf. Comfortable and practical heated scarf, perfect for cold weather.  2. Keep warm: Stronger warmth, can accelerate blood circulation and prevent neck from getting cold in cold weather. With waterproof and windproof function.  3. Convenient: Use USB Charging, it can connect to the USB port of PC and the power bank. So you can use the PC and other electronic devices without taking off the heated scarf.  4. Winter's best gift: These 5V heated scarfs are the perfect gift for your beloved father, mother/grandfather/grandmother/friend etc. Nothing is more important than winter warmth and health.  5. Battery powered: Heating temperature is approximately 40-50 C.Reach the rated temperature in 3-6 minutes.     Package Included: 1-Shawl.     Disclaimer: 1. About Size: Size may be 2cm/1 inch inaccuracy due to hand measure. These measurements are meant as a guide to help you select the correct size. Please take your own measurements and choose your size accordingly.   2. About Color: The precise color of the items may vary depending on the specific monitor, the settings and the lighting conditions. The items colors depicted should only be used as an approximate guide.