Uninterrupted Power Supply - Be ensured by a USB cable and 2*2000mAh replaceable and rechargeable Li-ion batteries (INCLUDED). Maximum Air Movement - 7.5-Inch design and built-in powerful motor deliver strong and steady stream of cool air at 3 different speeds with Max. airflow up to 3.8m/s. Degree Pivoting Fan Head - Easy to rotate the head of the fan and lock in place for precisely directed airflow. Unique LED Lighting - Come with a bright LED Light on one side for illumination use in the night or when you are camping in the summer. Super Quiet - It provides a peaceful environment, you will not be troubled by the noise both in life and on work.