6 Super Cooling & Quiet FansLaptop cooling pad has 6 noise-free fans, with blue LED, not only beautiful but also show fan is working. Very quiet rapid cooling effect prevents your laptop from overheating under different use situation. Adjust Fan Speed & Cooling Pad HeightOur laptop cooling pad 6 fans can work together, or 3 big fans and 3 small fans run separately, two separate switch control fan speed from 0 to max freely. The pad have 2 height for you select, free adjust suit different laptop.