Descriptions: Spoort any USB ports of PCs¬ebooks. Plug&play, ON/OFF switch. Powered by any USB ports. Speed can changeable by controling the switch. Supply strong wind, low noize with soft EVA leaves. LED indication, can light up when in darkness. Color available: white/orange/yellow. Technical Data: Power supply: 5V DC/ USB Operating temperature: -10¡æ to 70¡æ Operating humidity:85% Storage temperature: -10¡æ to 80¡æ Storage humidity: 95% Item demension:16.5*7.0*7.0CM Item Net weight:108G Length of power cable : 1M Packing details: Each is packed in blister card Q'TY: 50PCS/CTN N.W./G.W.:13/14KGS MEAS : 48*35*32CM