Materials: Above 2mm ABS quality plastic, can burden 75KG impact force, it is ok for dropping from 1.5m height
10000 Hours lifetime,4W 100% pure cupper brushless electric machine,3150RPM/min (other USB fan is below 2000RPM/min),energy conservation,low noise
2 ways to charge this mini fan. One with micro USB charging cable,support 1A output. Recommended the second by rechargeable and removable 2200mAh 18650 battery when outside of house.
High efficient and 3-6Hours long working time (Depend on the mode you use)
With 3 mode: strong,middle,little, the highest wind speed 4.2M/s, blowing from 3 m,effective range Above 3M