mini fan 1.Fan size:6inch 2.Power:USB/battery 3.Speed:two speed,1700RPM 4.Feature:simple style,pitch angle adjustable simple style mini fanSpecifications ... -designed blades angle and number ,new DC brushless motor, strong wind, super quiet. 2.5V USB(cable length:1.2m) or 4 ... occasion. 10.Sofe wind, cool and refreshing, comfortable. simple style mini fan with metal