Small Size and Lightweight: 5.5in travel fan is compact and portable, doesn’t take up a lot of space. 4.8ft cord is long enough to move the mini fan around your desk as needed. It’s perfect size for home, office, car, desktop, night stand, bedroom, baseball games, camping and travelling. USB Powered: The small desk fan can run off any outlet adaptor that has USB ports. You could easily plug into power bank, laptop, computer, USB socket, wall/car charger and other USB-enabled power supply (NOTE: No wall charger included). Detachable Cover and Stable Base: The table fan cover can be easily removed for cleaning the fans' blades. Silicone pads are designed at the 4 positions of the base for better anti-skid effect, so the small fan will not slowly crawl on the desktop and never tip itself over. Three-Speed Airflow: This portable fan has 3 modes to get the air flow exactly how you want it: Low, Medium and High. The high speed is very powerful, moves a lot of air, and cools you off that much more efficiently. Low speed creates quite the impressive breeze. Powerful and Super Quiet: The usb desk fan is composed of upgraded motor and aerodynamic air inlet/outlet grille, reduces air resistance, makes wind stronger and noise lower. Max wind speed reachs 5.3m/s. Noise level is between 30-50db. A great personal fan for sleeping and working.