Portable and FoldableThis neck fan adopts a new and improved design, which can be folded at will, smaller in size, and can be put into a small bag to carry around, which is very convenient to carry. 4000mAh Rechargeable BatteryBuilt-in 4000mAh high-capacity battery, can be charged via USB, it only takes 4 hours to fully charge, can provide 4-18 hours of stable work, the working time depends on the wind speed and the scene you use. Low noise and leafless designThe leafless neck fan adopts a leafless design, so you don't have to worry about your hair being caught by the fan leaves, and it is safe for the elderly and children to use. Three Gears Adjustable Wind SpeedThis portable neck fan has been improved for more convenient operation, press the power button to work, and the power button can also adjust the wind speed. There are three wind speeds of high, medium and low for you to choose, very suitable for personal cooling, indoor cooking, reading, watching sports, working, camping, traveling, hiking, fishing and other outdoor activities, mountaineering and cycling, etc. Optimized Ergonomic DesignThe adjustable twist airline memory neck strap can be bent 160 to fit all neck sizes, ensuring a perfect fit and more comfortable. After-Sales ServiceWe are committed to providing all customers with a quality shopping experience, if you have any questions about our neck fan, please feel free to contact us, we are willing to serve you at any time.