It may be small, but the wind is strong. Equipped with streamlined fan blades, it reduces noise, reduces wind resistance and increases airflow area. Great for home, car, office, desktop, camping and travel. A small, lightweight, convenient personal fan with an adjustable valve body that allows you to change the wind direction as needed. Unlike traditional wind speed adjustment knobs, this fan adjusts the wind speed through the adjustable knob. Turn the knob to change the wind speed smoothly. You can choose the most convenient speed according to your needs.