For USB Rechargeable Heating Hat Winter Outdoor Warm Fast Heating Breathable Hat

Feature: \n 1. Carbon fiber far infrared heating, rapid heating, large area heating, comfortable wearing.\n2. Intelligent temperature control, long press 3 seconds to turn on power, light press to gear.\n3. USB interface of mobile power, safe and portable, easy and convenient for charging.\n4. Can be washed by machine or hand, safe and secure to use, no harm for head.\n5. High quality fabric, comfortable wearing, heat storage and warm, good air permeability. \n\nSpecification: \n\nCondition: 100% Brand New\nItem Type: Heating Hat\nMaterial: Knitting Wool \nUsage: \n1. Connect the power supply and gently press the switch to start.\n2. When the red light goes on, the heating hat starts to work. The high temperature range of the red light is about 55\u2103.\n3. Gently press the green light, and the green light medium temperature is about 48\u2103.\n4. Gently press to turn the blue light, and the low temperature of the blue light is about 40\u2103.\n5. Press the lamp to turn off the hea: