Description This portable fan can not only be powered by the built-in battery, but also by an external power supply, such as power banks, computers, laptops or any other devices with USB output ports. Therefore, it is also a USB desktop fan.The arc-shaped grip designed according to ergonomics has anti-slip and anti-drop functions, and is very easy to hold. Features Portable fan -Color: As shown. -Material: ABS and electronic components. -Size: 6.1x3.6x13.1 cm/2.40x1.42x5.16 inch. Battery Capacity: 1500mAh. It will definitely be your closest partner in hot weather. With sufficient power but relatively low noise. Package Including 1 * fan1 * instruction manual1 * data line1 * lanyard