Features: 1.Folding notebook cooling pad, two pcs extra quiet fans built-in 2.Induction-switch,when laptop placed onto the pad then automatic working 3.Slim and smart design of the cooling pad system with large,high-performace and extra quiet 2 fans built-in which absolutely helps to dissipate the heat-air away from underneath the notebook computer for cooling dowm the overall temperature of your system 4 port USB hub built in 4.Extremly heavy-duty construction of the cooling pad to afford any weight or pressure put-on 5.Power source supported easily by plug-and-play USB connection as a self-power mode 6.Convenient,reliable and comfortable to carry 7.No need for any installation 8.Compatible with any notebook computers 9.Power on/off switch 10.Speed control Specification Material:ABS Air Flow: 28CFM Speed: 1500rpm Noise Level: 25dBA Rated Voltage: DC 5V Power Consumption: <0.9W Rated Current: <180mA Fan:70*70*10mm(L*w*H) M.T.B.F.: 20000Hours Dimension:300x 155 x 20mm(L*w*H)