Mini desktop fan student dormitory office little fan portable portable foldable ultra-quiet electronic fan

input: 5.0V max. 2.0A
battery: lithium ion battery
fan power: maximum 4.0W
battery Energy: 1200mAh(7.4Wh/3.7V)
product corpse inch: 145 (length) * 47 (width) * 195 (height) mm
color box size: 20*15.5*5.3
wind speed: four gears
packing number: 60PCs
carton size: 56.5*41.5 * 47cm
item weight: 249g
single Color box plus product weight: 309g
net weight of a box: 18.5kg
gross weight of a box: 19.5kg
3.5 to 4 hours can be used for 3 hours of charging