Features:High-quality FabricsThe outer front is polyester wool fabric, skin-friendly and soft, anti-wrinkle, non-ironing,and non-balling. The back is long-staple cotton fabric. The interior is filled with cotton, which is breathable andhas double warmth.USB PoweredThere is a USB socket inside the invisible zipper. BMS power management system, real-timemonitoring, and feedback of the heating film temperature, precise control of the temperature suit in thecomfortable range of the human body.3 Temperature AdjustmentThis USB heating scarf is 3-second quick heat. There are 3 temperatureadjustments, and the temperature setting is 40~50, Energy-saving and constant temperature, safe explosionproof.3 Style AvailableThere are 3 colors for your choice: pink creates a warm feeling, light gray neutral all-match,dark gray low-key calm, one-key switch three temperature, efficient warmth.Winter WarmThis USB heating scarf can transfer heat energy to the deeper parts of the human body,promote blood circulation, intelligent constant temperature, no radiation risk, energy-saving, and electricitysaving.Specifics:Material: Polyester fiber wool + long staple cotton + cottonTemperature Control Range: 40~50Controller Grade: 3 Rated voltage: 5VRated power: 5WPower bank output: 5V/1AProduct Size: 80*10cm/ 31.4*3.93"Color (Optional): Dark Gray, Light Gray, PinkNote:1.Due to the difference between different monitors, the picture may not reflect the actual color of the item.2.Please allow slight dimension difference due to different manual measurement. Thank you for yourunderstanding.Package Include:1 X USB Heating Scarf