Feature:1. Fast heat dissipation and no noise, 3 levels can be adjusted, strong heat dissipation2. Leafless metal turbine heat dissipation, fast heat dissipation, single turbocharged drive rotation, more silent and more wind power3. Small size, easy to carry and store, convenient to use and with good performance4. Run quietly until you can ignore its existence, so that you can only hear the sound of wind5. A wide range of applications, 12‑18 inch laptops can be used, can also be used as a fan on the desktop6. USB power input port, all kinds of equipment can be powered, the bracket can be used at two anglesSpecification:Item Type: Laptop Cooling FanScope of Application: Tablet, mobile phone, laptopProduct Material: Aluminum alloy + ABSNoise Value: 30-40dB (A)Fan Type: Metal turbo fanRated Voltage: 5VDCAir Volume: 34-38CFMSpeed: 2100-2900PRMCooling Method: Air coolingPower Interface: USB to DC power supply.Package List:1 x Cooling Fan1 x USB to DC Power Cord2 x Silicone Pad2 x Long Silicone Pad1 x User Manual