Laser tracking that works on virtually any surface and a tiny, leave-in wireless receiver put the power to achieve in your hand.

With your Logitech Performance Mouse MX, you've got the power to conquer almost any surface and any task without a second thought.

Logitech® Darkfield Laser Tracking Now, your mouse works where others don't - even on glass. You work and play all over the place--and that means you're going to encounter all sorts of work surfaces. A glass desk or shiny table shouldn't stand in your way. That's why we created Logitech® Darkfield Laser Tracking™, featured in the Logitech® Anywhere Mouse MX™ and the Logitech® Performance Mouse MX™. Darkfield tracks on surfaces like clear glass* and lacquered desks that stump optical mice and standard laser mice. So now your mouse works wherever you do.

It's all in the details.
Optical and traditional laser mice use irregularities in the surface to track the direction and speed of your mouse. The more irregularities on a surface, the easier it is for the sensor to track your movements. But use your mouse on a smooth, glossy surface like clear glass, and there just aren't enough imperfections for your standard mouse to work. This is where Darkfield Laser Tracking comes in. Darkfield uses the smallest possible details to create a micro-road map of the surface--so you get better precision on more surfaces.

Can this mouse do everything?
Just about. Keep in mind, however, that we haven't designed the first two mice with Darkfield Laser Tracking for gamers or for those working on laboratory-grade clean glass. If you're making lightning-fast maneuvers and need gaming-grade cursor speed, take a look at the Logitech® G9x Laser Mouse.

And if you're working on exceptionally clean glass, you may have to wait until the dust settles. For surfaces with fewer than 44 microscopic details (per square millimeter) that are less than 5 µm wide and 1.5 µm thick--to give some context, a strand of human hair is about 100 µm wide--you may want to swipe your hand across the surface before using your mouse. But for everyone else, Darkfield Laser Tracking gives you precise cursor control on virtually any surface--even glass.

Darkfield Laser Tracking™
You get accurate, precise cursor control on virtually any surface, even glass tables (4 mm minimum thickness) where optical and standard laser mice fail. Turn the world into your mouse pad

Logitech® Unifying receiver
The tiny receiver stays in your notebook. Plus, you can easily add a compatible wireless mouse or keyboard--without the hassle of multiple USB receivers

Flexible recharging system
A micro-USB cable charges your mouse through your computer or a standard outlet--even when in use. You'll always have the power you need to get the job done.

Hyper-fast scrolling
When you need to do some long-distance scrolling, hyper-fast scrolling unleashes the speed demon inside. What's going on under the hood? The ratchet-scrolling mechanism you're used to retracts so the wheel can spin with virtually no friction. Seven seconds. That's how long some of our scroll wheels spin freely--speeding you through hundreds of pages or thousands of rows. And, oh yeah, it's got precision handling too. With normal click-to-click scrolling, you can navigate your lists, slides, and images with the line-by-line control you need.

Sculpted, right-hand shape
Designed to fit your hand and put it in a comfortable, natural position.Comfortable hands like comfortable mice.

Four thumb buttons
Customizable thumb buttons help you do more, faster. Move backward or forward through Web pages, zoom in or out on photos, and jump between open windows.Change the cursor speed? Change the cursor? Change the programmable buttons?