USB to start,silent,strong wind,outdoor and indoor use,ultra-low power,save electricity,camping use,PC use,Home use.. ModelQT-U401ASpecifications:4-inch, 1 speed governorMaterial:Metal - ironType:spray powderPlug:USBMotor:BrushlessVoltage:5VPower:2.5WCord Length:1.2MProduct Size:143*85*141mmBox size:150*100*150mmCarton Size:487*310*470mmNW:9.5 KGSGW:12.5 KGSPacking Q'ty/CTN:30 pcsPackage: ...