DESC: If you're going to play at the highest level, you need a mouse that gives you an edge. The MX 518 Gaming-Grade Optical Mouse does exactly that with its ultra-high resolution, 1600-dpi MX Optical Engine that delivers lightning-fast response and mirror-smooth tracking. The contoured grip ensures peak performance and comfort, even during the most intense gaming sessions.Battle-tune your MX 518 with up to five custom sensitivity settings - you get instant, on-the-fly sensitivity adjustment that lets you switch effortlessly from pixel-precise targeting to fast-twitch acceleration, without any software. This mouse features 5.8 megapixel/second image processing, up to 15g of acceleration and an expanded 16-bit data format that supports blazing fast moves with pure precision. Super-slick gaming feet provide effortless, precise tracking.