This USB desk fans small quiet has a built-in 1200mAh rechargeable battery, and it can be recharged via the type-C USB charging cable, with long working time ideal for camping, traveling and other working.With a 180-degree swivel stand design, the small fan can stand or hang. And ultra-wide angle square-shaped diverting body structure gathers wind power on all sides which can blow high-speed airflow. easily adjust 100 modes of airflow.Designed with LED powered display, you can easily see the remaining power and speed level, avoid sudden power off.It is quiet enough but still powerful for a cool breeze, gives you a comfortable work environment, perfect to use while working and studying.