Legit Reviews posted a review on the Cougar 550M Gaming Mouse
A quote from the article:
Many PC enthusiasts should be familiar with Cougar and their products. For those who haven't heard of them yet, the company was founded during 2007 in Germany making computer peripherals. They have since branched into computer cases, power supplies, and computer fans under their parent corporation CompuCase and Cougar products are sold worldwide. Given the amount of time Cougar has been in business, it is our expectation that the 550M gaming mouse we are reviewing won't disappoint.Cougar 550M Gaming Mouse Review @ Legit Reviews