Memkey - Handheld Fan, Rechargeable Mini Portable usb Fan, Small Pocket Fan with 5 Speeds and Base, 4000mAh Battery, Foldable Desk Fan for Office,

【USB rechargeable】With built-in 4000mAh high capacity lithium batteries, the portable fan can work for 5.5-13 hours when fully charged. You can charge this battery powered mini fan with any USB device as it is compatible with all USB ports. 【Five adjustable speeds and one-button design】Compared with similar products on the market, the small fan has been innovatively upgraded to five wind speeds to meet your needs in different occasions. In addition, thanks to the one-button design, you can switch between wind speeds by pressing the button, and turn it off by pressing the button for three seconds. 【LED display】The fan has a digital display that shows the current wind speed and battery level when in use. In addition, the battery level indicator of the small fan also serves as a reminder to charge it before this mini fan runs out of power. 【Fast cooling and removable fan guard】The USB fan features five blades that maximize airflow and provide cooler, gentler wind. In addition, the