The heated scarf heats up quickly in seconds. Lightweight and portable, easy to carry when camping or other activities in winter. It is also suitable for people who are afraid of cold, so that they no longer have to worry about winter.How to use: Plug the USB interface into the power bank and put the power bank into your pocket. Press and hold the scarf button for 3 seconds to turn on/off, press the button again to toggle temperature.product specificationsName: Heating scarfDimensions: 105x13 cmMaterial: 100% polyester, cloud silk cottonNet weight: 240 gramsRated power: 5WRated voltage: 5VCharging method: USB chargingPrecautions1. Please fully charge before first use.2. Please cover the USB interface before cleaning.3. Do not use before completely dry.Package includes1x heating scarf (batteries not included)