KEBOD New 2-Speed USB Bladeless Fan - Mini Home Use Fan - Bio-plastic & HIFAN Silent Fan, Black The Small & Exquisite Outline - Features stylish and lighweight, which is convenient to move and can save space. Stronger Airflow - Almost same as a category 3 natural wind. It also has 2-speed, regulating air according to the indoor temperature. Low Noise - Adopts high-grade dynamo oil, the blades is operating stable and quiet. Healthy & Comfortable - Adjusted to the best air-blast angle and placed in the best distance. You and your busy families will sleep in peace. Smart Security - can be installed into narrow spaces, which is specially suitable for deskmen.