I got this laptop cooler for my son who just got a new laptop for school. He likes to sit on his bed and do his homework and I did not want the laptop to overheat. He really likes the laptop cooler. It keeps his laptop cool while doing his homework or playing his video games. It produces a good amount of air. I tested it on my spouses HP 17 inch laptop that was always overheating and turning off. Since using this product I have not had that issue. Keeps the laptop cool and have not heard his laptop fan running like it was going to take off and have not had any problem with the computer turning off. The LED lights are really neat and if you have a 17 in laptop you only get a soft glow from around the laptop. Has an on and off button and 2 USB ports to plug into your computer. (The fan has an extra USB port to replace the one it is using). Comes with the cord. It comes on as soon as you turn on you computer, and then as soon as your computer shuts down, it turn off along with it. If you just close the top of the laptop and it is still on the fans stay on. It is portable and very lightweight. The only downside is you can not turn off the LED lights when it is on..which for some maybe a downside at night but we think the lights are cool. I received this product free. All my reviews are based on my own experience and evaluation of the product so that others can benefit in finding quality products that meet their needs & expectations.