Brought for my son who uses his lap top most evenings for prolonged periods.

I had purchased alternative well known models x 3 previously which my son stated were not effective at cooling down his expensive lap top down.

But he say's the Cool Master is great- and blows out super cool air with the 3 movable fans, which he can place exactly where the hot spots are.

He reckons its the best he as had, so save your money unlike me and avoid other brands.

The only down side is the bulkiness. It won't fit in his large Spider lap top bag, so really an home or office piece.