... mute. 4.Color choosable,excellent workmanship super quiet mini fan battery for laptopFeatures1.2300RPM speed,96mm blade diameter, new DC brushless motor ... switch, its angle can be adjusted up and down by 360°7.Dimension:158*107*200mm, weight: 185g, easy to carry ... Carton size:60×365×65 mm super quiet mini fan battery for laptop