3-Gears of Wind Adjustment:- The portable neck fan has 3 wind speeds, low, medium, and high to choose from. You can choose the right gear for you in different temperatures and occasions. The speed adjustment is easy to operate, and you can switch between different wind speeds with one button through the side button, which is very convenient to use. Long-lasting Battery Life:- Built-in 2600 mAh battery, large-capacity battery lasts longer, and it can be used for long times after charging for three hours, allowing you to keep cool all day long. Summer Essential Neck Fan:- This portable neck fan is a must-have cooling tool in summer, suitable for outdoor travel, camping, home leisure, office, dinner parties and other activities. The portable neck fan frees your hands and keeps you cool anytime, anywhere, perfect for hot summer days.