휴대용 선풍기 (Portable Fan) is an Android app developed by Wmup. This app allows users to experience the sensation of using a portable fan. Please note that the app does not actually provide any cooling effect.

The main feature of 휴대용 선풍기 is its ability to simulate the sound and visual effects of a portable fan. Users can choose from various fan speeds and adjust the direction of the virtual fan. The app also includes a timer function, allowing users to set a specific duration for the fan simulation.

It's worth mentioning that the app displays short advertisements during prolonged usage. Overall, 휴대용 선풍기 is a free app in the Multimedia category, specifically under Photography. However, it is important to note that this app is purely for entertainment purposes and does not provide any actual cooling effect.