Rechargeable for thousands times and ensures safe using.
Please open the battery cover and take out the insulator before using the fan, or the fan can't work.
With the USB charging cable, works with and could be recharged by 5V output adapter, USB charger, laptop, computer, power bank and other USB-enabled devices.
Low-medium-high speed level. Adjust appropriate fan speed by pressing the power button repeatedly.
Handle design, convenient to hold in hand, and also fits your handbag with its palm-size. Or just put on the desk