【Portable Fan with Powerful Airflow】: Our portable fan is equipped with a durable, powerful motor with strong wind. The turbine shroud allows the blades to provide more concentrated wind force. Even if you stand far away, you can still feel the strong wind. Helps you cool down quickly in the hot summer. 【Portable Fan with Five Speeds】: Our rechargeable portable fan has five turbine wind speeds, bringing powerful coolness. Simply press the power button to change the wind speed setting, a short press switches from low to high speed, and a long press at any speed turns it off. 【Small USB Rechargeable Fan】: This portable fan is powered by a high-quality 4000mAh rechargeable battery, which can last up to 11 hours when fully charged. The portable fan can be charged using a USB charging cable, USB charger, laptop, desktop computer, power bank and other USB-enabled devices, and can be used while charging. High capacity and long battery life, lasts about 1.5 hours on high speed and 11 hours on