iKross USB Fan USB Mini Desktop Office Fan with 360 Rotation - Black for PC Computer Laptop Chromebook Ultrabook Ultra-quiet design, strong wind and low power consumption. The fan's pitch angle can be adjustable upward or downward. Powered by USB cable to connect with your computer or DC 5V power adapter The ON/OFF switch on the back, for easy to operate Compact Size: 6 x 6 x 4 inch