... ABS&PP 3.fan parameters:5v,2.1W,2300RPM 5.Features:super quiet, 25000h working life personal mini USB air cooling ... DC brushless motor, strong wind, super quiet.2.5V USB(cable length:1.2m) power supply, plastic shell, ... time.5.Fashional and novel shape, noble and elegant.6.Fan is with control switch, its angle can be ... .10.Sofe wind, cool and refreshing, comfortable. personal mini USB air cooling fan