High QualityThis smart heating scarf is made of high quality materials,durable enought for your daily wearing. Stylish design make you more attractive,I am sure you will like it! Rechargeable USB heating scarf can help keep the neck warm and relieve painful stiffness. Size :80x10cm/31.5x3.93in. Durable enought for your daily wearing. Warm And Cozy Heated Scarf can adjust the temperature. the neck heating has 3 temperature modes for your different needs, it is high temperature (red)65, medium temperature (blue)55, low temperature (green)45, you can adjust the temperature according to the weather conditions. Long press for three seconds to start the (note: the scarf does not store electricity). How To UseHeated scarf, It needs to be Connected to the power bank when using it. First, you need to prepare a mobile power bank of suitable size, please charge it in advance. Second, when you turn on the switch, you must hold the switch until you see the light. Only need one key to switch the temperature after starting up. Maintenance TipsThis heating scarf supports hand washable then let it dry naturally. Does not support machine washable. Please take out the portable power bank and install the silicone waterproof cover to the USB cable before washing. This is the best gift choice for Christmas and Thanksgiving to colleagues, male and female friends, elderly or children.