10PC Black Mini USB Desk Fan Small Quiet Personal Cooler USB Powered Portable Table Fan Features: Quiet and efficient: There are 4 types of blades in our desktop USB fan made with a unique cutting process. This revolutionary technology makes wind energy flow more smoothly and faster. When running, you will only hear a whisper. The quiet operation makes it very suitable for use in work or study. 360° angle adjustment: This USB mini fan can be adjusted to your favorite angle by rotating it up and down 360°. Just rotate the frame of the desktop fan, and you can enjoy the cool wind from different angles. Space saving: This portable fan is a high-quality and high-performance mini fan. The slim design takes up less space than other desktop fans, but still maintains high performance and can relieve hot weather. Energy saving: This micro USB desktop fan consumes only 5 watts of power per hour, which is about 95% energy efficient than traditional AC desktop fans. Lightweight and easy to use: This 4-inch mini desktop fan can send out a breeze to keep you cool and relaxed. This mini fan weighs only 0.42 pounds, making it easy to move or transport. The exquisite and compact design allows this mini USB desktop fan to be placed anywhere on the table or any other flat surface. Specification: Model:JB-U403 Basic parameters: DC5V ~ 2.5W Power Supply: USB Interface Main Material: PP Plastic Blade: 4 PP Blades Motor: Brushless Pure Copper Motor Speed Setting: 1 Speed, Rocker Switch Control Power Cord: USB Plug, 1.1m*24AWG Cord Colour: Black Features: Rotate at 360 degrees Packages Include: 10x 4" USB Mini Fan Black