Features: Winter supplies: Suitable for outdoor activities in mountaineering and severe cold climate to prevent neck frostbite in low temperature climate. Comfortable fabrics: high quality mink velvet, delicate touch, warm and breathable. Intelligent three-speed temperature control. Nano heating technology effectively relieves neck pain. No fear of washing: The leak-proof and leak-proof washable heating system can be immersed in water as a whole, and the power supply interface is practically isolated and waterproof. USB interface design: you can use 5V mobile power, the output voltage is only 5V, which is absolutely safe and reliable. 6000mAh large power capacity, the whole neck is heated in a large area and heats evenly. Specification: Name: USB electric heating scarf Output voltage: USB/5V Size: 86cm*11cm Material: mink velvet Using time 4-8 hours Weight: about 185g Color: dark blue, white, pink, khaki (optional Packing list: 1 * USB electric scarf