The Marsback Zephyr Pro is going to be a difficult device to score. On the one hand, it's an attractive and customizable mouse that works as well as I could have hoped that a mouse would do it. On the other hand, the main argument of the unit - a fan illuminated by RGB which sends a breath of fresh air to your disgusting and wet palm - left almost trop be desired. When I say that the traditional functions of Zephyr Pro work extremely well, I really think so. The base slips effortlessly on a mouse pad and the shape perfectly marries the contours of my hand. Each click is reactive, regardless of one of the six buttons. And the RGB effects bring out my office even more. Everything is fine and dandy. In fact, compared to any other mouse in the price range of $ 59.00 from Zephyr Pro, you would have trouble finding one that works as perfectly as Marsback. But we did not come for the crackling - we came for the steak. And the meat of Zephyr Pro should have been its fan illuminated by ...