Mini USB fan with the metal case 1)Ultra-quiet fan for office 2)Fan Colors ... 3)Portable,free angle use,great materia Mini USB fan with the metal caseFeatures1.2300RPM speed,96mm blade diameter, new DC brushless ... life can be 25000~30000 hours, can be used continuously with long time. 5.Fashional and novel shape, noble and elegant ... : 2.1±0.25WCable length: 1.2MPictures Mini USB fan with the metal case