features a unique bladeless fan with three fan speed level-low, medium and high. Features: Mini portable USB powered wireless bladeless fan. It features a unique bladeless fan with three fan speed level low, medium, and high. Let you enjoy the cool whenever and wherever you like. Great for children's safety and easy to use. It is aerodynamically made, it can absorb wind from all 360 degrees and provides powerful and soft breeze. It brings the wind from the bottom to the outlet, where it can result noise from the inner body of the fan. it can be used while charging