1. - Lightweight and Portable: The mini fan only: 330g. Size: 13.9*20.5*2cm, Ultra thin When it comes out, you can put it in your backpack or bag, take it anywhere. It is suitable for bookstores, offices or outdoor sports. Hot summer is coming, it is also a good gift for family and friends. 2. - USB and battery: USB compatible with laptops, computer, power bank and other USB-enabled devices, the package includes a battery (can be recharged repeatedly) a variety of charging methods to make your life more convenient. 3.- 3 speed travel: Low, medium, high. Press the switch can adjust the wind speed. 4.- Good design: the desk fan used in ABS, The wooden appearance is fashionable and unique (not wooden), The fans are very narrow to protect their childrens fingers. Product Desktop Fan, Mini USB Silent Folding Fan Rechargeable Portable Fan Tips : USB cable on the package Special design fine mesh shell to avoid hurting fingers Brushless motor ensures a rather quiet working state How to Use: 1. Insert the DC cable firmly into the DC cable connector. 2. Insert the USB plug of the DC cable into the USB connector of the computer. 3. After use, the adapter plug, USB plug and DC cable should be removed from the outlet and fan respectively. Speed: Press the button to start speed 1 (low). Press twice for speed 2 (medium). Press three times for speed 3 (high). Press it once to turn it off. LED indication: In use: light in red. During the charging: red light on. it is fully charged: light in green.