Features: 1.This fan has 4 speed settings to choose from to help optimize the strong air circulation and airflow in the house or work space. 2.Adjustable airflow, this fan can rotate 90 degrees, just adjust the head of the fan to achieve the target cooling performance, so as to easily guide the airflow. 3.Coated metal safety grille and stable base help to make it a safe and durable desktop fan for office or home use. 4.This household fan is quick and easy to install, you can use it immediately to create a more comfortable environment in your home or office. 5.This compact silent indoor fan is small and compact, can provide strong airflow, and is equipped with a convenient built‑in handle, which can be easily transported between rooms. specification:Item Type: USB Desktop Fan Material: ABS Input: 5V / 1A Power: 4W Built-in Battery Capacity: 4000mAh lithium battery 18650 Support for Shaking Head: About 90automatic shaking around, and about 90adjusting up and down manually 2 Charging Methods: Micro USB, Type-c Fan blade/3Pcs, 4-speed adjustment Charging: About 5h, Battery Life: About 15h (according to wind power) PackageList:1 xFan1 x USB Charging Cable1 x User Manual