Material: plastic Power mode: USB Rated voltage: 5v Rated power: 2,5w Wind speed: 5 gears Number of fan blades: 5 pieces （Charging via USB） Thanks to the built-in high-capacity 4200 mAh lithium batteries, the wentylator charged by USB can work 6-13 hours after a full charge. This mini wentylator is compatible with all USB ports, so it can be charged from any USB device. （Five adjustable speeds and one-button design） Compared to similar products on the market, the small wentylator is innovatively upgraded to five wind speeds to meet your needs on different occasions. In addition, thanks to the one-button design, you can switch different wind speeds by pressing the button and turn off by long pressing the button for 3 seconds. （LED） power display It serves as a low battery reminder to remind you to charge this portable fan on time. （Fast cooling and removable fan cover） The manual wentylator USB features a 5-blade design that maximizes airflow for a cooler and smoother wind. Plus, the removable fan cover ensures that the fan is easy to clean to prevent allergies caused by dust buildup. （Low noise and portable） The high-quality pure copper motor effectively reduces friction noise and provides strong wind with less noise. The Wentylator charged by USB weighs only 190 g, so you can easily take it with you anywhere, anytime.