[Longer Working Time] 5000mah large capacity, support 16-24h working time with one full charge. Working time depends on different speeds: Speed 1 (24 hours); Speed 2(20 hours); Speed 3(18 hours), Speed 4(17 hours); Speed 5(16 hours).[Digital Display] Designed with digital display, you can see the remaining power easily, avoid sudden power off. The usb rechargeable fan is foldable, supporting 90 degrees adjustment.[Multifunction Fan] Handheld Fan /Neck Fan/ Desk Fan: The portable mini fan not only can be used as a handheld fan, but also can be used as hanging neck fan, with a detachable lanyard. In addition, it has a removeable base, which can be used as a small desk fan on the desk table.[5 Speed Setting] 5 speed adjustable, short press the button to turn on the fan, and press repeatedly to adjust the wind speed or turn off the fan.[Mini size] 7.4x3.5x1.8 inch/0.4lb, the mini personal fan makes it easy to put into bag, perfect for outdoor travel home office.