I've been looking for a small fan for the desk and got this small but smart thing found. Powered by USB and by the compact size it is perfect for the desk. In operation only the airflow is almost audible, the engine is wonderfully quiet, but brings the fan neatly on tours! The airflow is pleasant and cool even in the field of super desk (max. 1.5 m distance). However, the small is not suitable runterzukühlen an entire room by 5 ° C, but it is also not intended.
I am fully satisfied with the purchase and the product and may the mumbi USB Fan recommend almost unconditionally.