... :ABS&PP 3.fan parameters:5v,2.1W,2300RPM 5.Features:super quiet, 25000h working life personal mini USB air cooling fanSpecifications:MaterialABS&PPCertificatesCE ... ,96mm blade diameter, new DC brushless motor, strong wind, super quiet.2.5V USB(cable length:1.2m) power supply, plastic ... , can be used in any occasion.10.Sofe wind, cool and refreshing, comfortable. personal mini USB air cooling fan