I've been using this for a while after purchasing it, but I'm selling it now as I don't plan to use it anymore. It can be used by connecting it to a computer via USB or by plugging it into a power outlet. It's compact and easy to carry, and the angle can be adjusted freely. In my personal opinion, it's not too small, so it has good airflow, and I didn't notice the sound much. Upon close inspection, there are some minor scratches and dirt (see the last two photos), but I've cleaned it as much as possible before listing it. ＜Product Contents＞ Desktop Fan Compact Fan Circle Dooshia Co., Ltd. USB cable AC adapter Color: White Size: Approximately 16-17cm ＜Operation Check＞ ON/OFF via USB connection and power connection Low airflow with one press of ON, High airflow with two presses *Please note that this is based on a visual inspection. *Please also refer to my profile for transactions and shipping methods. *Instant purchase is welcome. Thank you! #DesktopFan #DesktopFan #DeskFan #Circulator