I wanted this particular a possible small, cheap fan (which you can take without problems from one place to another).
This fan meets these requirements fully. The ventilation even I feel as optimal. He is not so much that you get a headache (as like happened in the use of ventilators times), but still has a pleasant refreshing effect. The vertically continuously adjustable angle of the fan works perfectly.
What you also can say as very positive is that he even from my tablet (Galaxy Note 8.0) and my Smartphone (Galaxy S3) over the OTG USB port can supply enough power! A more mobile fan I can not imagine!
I am completely satisfied especially considering the low price.