... materia Mini USB fan with the metal caseFeatures1.2300RPM speed,96mm blade diameter, new DC brushless motor, strong ... processing, safe. 3.New generation of DC brushless technique, lower running voltage and current, power ... and novel shape, noble and elegant. 6.Fan is with control switch, its angle can be ... 3*147mm,weight: 144g ,easy to carry. 8.Fan occupies small room, stable structure, easy to place ...