The gaming mouse has been around for a while but is constantly being tweaked and refined to offer that extra competitive edge. Genius has been pretty active in this market. Its latest offering is the Ergo 555 Laser, capable of a handling a range of dpi settings from 400 up to an impressive 3,200. It's a wired USB mouse featuring a cloth cabling that's supposed to be more flexible and less likely to restrict your movement at that critical juncture.The rest of the admittedly stylish design includes a smooth rubber grip, a total of 10 control buttons with scroll wheel and an innovative OLED display that reports the current profile settings. Our first impressions were that the mouse was extremely light, and there's no provision here for adding weight as seen in some rival products in this range. This is something you get used to, though, and few but the most finicky of gamers would find it has much of an impact on performance.