USB Powered: This is a plug in USB fan, the 4.9 ft USB cable is compatible with all USB port, such as computer, laptop, power bank, USB socket, wall charger. NOTE: No wall charger includedport, such as computer, laptop, power bank, USB socket, wall charger...NOTE: No wall charger included. Small Size: The mini fan is 14.5*15*5 cm/5.7*5.9*2 inch in size and 6.3 oz in weight, the diameter of fan head is 13 cm/5.1 inch. This is a lightweight personal fan, space-saving on desk and easy to carry around Speed Adjustable: The portable fan has three speeds to meet different cool needs, press the button on the back to operate. With five fan blades, the electric fan can provide powerful wind to cool you down quickly Practical Design: This small table fan can rotate 360 degree up and down, free to direct the airflow where you want. The non-slip base ensures the usb fan can keep stable on desk and decrease noise when use Wide Application: Need a little fan for office? No more space on desk? We recommend TriPole mini desk fan! It’s ideal for home, office, bedroom, also portable to take outside (need power) for travel, camping Notice Before Purchase: This is a USB desk fan, it needs to be plugged in to work, the usb cord cannot be removed Suitable for cruise, travel, hotel, bedroom nightstand use.