【Desktop & Hanging - two ways to use 】(1) Desk fan: There is a non-slip silicone pad at the bottom of the main body, which can be placed firmly on the desktop for use. (2) Camping fan: The base has a foldable telescopic hook, which can be directly hung on the tent for use. The USB fan is compact (142*152*68mm) and lightweight (203g), easy to carry and store. Perfect for use in the office, bedroom, car, camping or trips. 【USB Powered】The portable fan is powered by a USB cable(non-detachable) and it is compatible with all USB ports, such as AC adapter, computers, power banks, wall chargers and any other USB-enabled power supply. You can simply plug it into the power supply for the whole day or night working (Note: This fan does not include battery). 【3 Speeds & 90° Rotation】The mini desk fan has 3 speeds, allowing you to choose the most comfortable airflow for different occasions. You can adjust the appropriate wind speed by pressing the power button repeatedly. Also, the fan head can rotate vertically from 0 to 90 degrees, providing the most suitable angle wind for you. 【Quiet Operation】This small fan is not only powerful, but also quiet, you can barely hear it at the low speed, the working sound is lower than 45 db at the high speed, which is unnoticeable and will not disturb what you are doing, the mini fan is ideal to sue when studying, reading, working, sleeping, doing yoga, etc. 【Removable Front Shell】The front shell of the table fan is removable. When you need to clean the fan, you can remove the screw on the shell, and then twist the front cover counterclockwise with your hands and take it down to wipe off the dust. Then align the groove and turn it clockwise and tighten the screws.