Definition: Given an Amazon customer review, write a title for the review. The preferred titles are under fifteen words.
Input: I had high hopes for this fan based on the great reviews but so far it's been a disappointment.<br /><br />I monitored my laptops sensors while playing a 1080p youtube video which usually overheats my laptop very quickly.<br /><br />The sensors indicated there was no difference in temperature when the fan was on.<br /><br />I am not sure if my product is dysfunctional or not (the fans run fine) but it is simply not doing the job.<br /><br />Also, the blue lights are unneeded and often an annoyance as you cannot turn it off.

... had high hopes for this fan based on the great reviews but so far it's been a disappointment