Quiet Operation The fan is very strong and the noise is less than 50dB even when a strong wind is provided. At work and rest, this is a good friend who is quiet and comfortable for you. Classic Design & Small Size Classic design and more compact take up small space. It is very suitable for home, car, office, outside or traveling. High Compatibility USB powered small desk fans, powered by USB to save energy and are compatible with PC/laptops, mobile power supplies, AC adapters, car chargers, and other power supplies that support USB. Adjustable Wind We have taken into account your various needs, the fan head can rotate vertically from 0 to 360 degrees, providing the most suitable angle wind to quickly cool you down. This portable fan is perfect for office, desktop, dorm, home, bedroom, library, camping, travelling or anywhere you need to cool down!