[Adjustable 5 Wind Speeds ] - The hand-held mini fan provides 5 different wind speeds, sleep wind, natural wind, refreshing wind, cool wind, circulating wind. One-button design, short press the power button to turn on the fan, press repeatedly the button to adjust the speed of the fan. In hot summer days, it is a must-have for home, office, travel, hiking, shopping, camping and other outdoor activities.