[Small and powerful] this USB metal fan has a huge impact when it is turned on, which can quickly cool you down. Don't look down on it because it looks small. You'll be surprised at how strong the airflow is. [Silent operation] although the fan is very strong, the noise is very low even at high speed.It's a quiet fan that can bring you cool when you work and sleep. [USB power supply] powered by USB cable, compatible with computer, laptop, power pack, wall charger and any other power supply supporting USB. USB Fan energy saving and environmental protection. [Adjustable & Easy to Clean] Fan head is able to tilt from 0 to 360 degree to direct the airflow to where you want. Removable front cover is easy to remove for cleaning the fan blade. [Lifeguard in hot summer] save you from the hot tide. This summer will be more enjoyable.