Please open the battery cover and take out the insulator before using the fan, or the fan can't work.
Rechargeable High Capacity Battery
This battery operated electric fan Ensures 10 hours wireless working time - With rechargeable 2600mAh lithium battery, works 3-10 hours on a full charge, rechargeable for hundreds times and ensures safe using.
3 Adjustbale Settings
Indoor and outdoor portable usb fan - Low-medium-high speed level.
Convenient USB Charging
Compatible with all USB output device With the USB charging cable, works with and could be recharged by 5V output adapter, USB charger, laptop, power bank and other USB-enabled devices.
With the foldable handle design, it is convenient to hold in hand when using, and also fits your handbag with its palm-size.