Logitech Cordless Desktop S520

Sensitive to your needs

Some people just need a mouse that works. Others need a mouse that can track on many surfaces. And gamers need a mouse that can give them game-changing precision at any hand speed.

Details, details

There are two kinds of sensors: optical and laser.

Mice with optical sensors track the surfaces beneath them using the available light and an LED lamp.

In 2004, Logitech introduced the first mouse with laser tracking. Laser sensors, compared to optical, produce far more illumination—both of the surface and of the contrast created by, literally, specs of dust on the surface—revealing a wealth of details even on glossy surfaces like highly polished wood. And that means your mouse can track motion precisely on many surfaces, without lags or jitter.

Gaming-grade control

If you’re an expert gamer, pixel-perfect tracking can mean the difference between victory and defeat. Our mice with gaming-grade laser sensors can track at speeds all the way up to 5700 dpi. So when the game is on the line, you’ll get maximum precision, blinding speed, and ultra-smooth tracking.

See all mice with a gaming-grade laser.

Track tested

We rigorously test all of our laser mice on a wide variety of surfaces to make sure your mouse is free of tracking flaws.

* Mice with Logitech® Darkfield Laser Technology cannot track on glass that is 4 mm thick or less, which is not much larger than the head of a pin.

More power to you

No one likes to run out of batteries. It’s a hassle. Scouring the house for new ones. Finding two that still have juice. Even making an extra trip to the store. At Logitech, we’re doing everything we can to make the hassle of replacing batteries hassle-free.

Batteries? What batteries?

Wireless keyboards let you avoid the inconvenience of cords. But unlike a corded keyboard (which is powered via USB and your computer), wireless keyboards use batteries, and batteries do run out of power.

Don’t even want to think about changing batteries? We’ve got just what you need. You can choose a keyboard with a battery life of 15 months—or even three years—and practically eliminate the hassle and expense of changing batteries.*

Just the way you want it

Your keyboard isn’t just for typing. Many can launch Web pages and applications, control your media, and sometimes even show you what song is playing.

With Logitech® SetPoint™ software, you can not only change the function of your keys—you can customize all sorts of things to make your keyboard work better for you.

Download SetPoint now.

Hot keys at your service

Is that hot key not so hot in your eyes? You can easily change what it does with SetPoint. You simply select your keyboard, find the hot key you want to change, and pick what you want it to do.

So you can make that unloved button open a Web page, launch your favorite program, open a file or folder, and more. Or you can assign keystrokes to it.

F-keys that function your way

You don’t have to let your F-keys push you around either. You can program them to do what you want, too. You just choose the Function Key tab and make your changes.

Blocking the lock keys

No need to fear that Caps Lock key. SetPoint lets you disable the keys you’re afraid to accidentally hit—like all those lock keys, the Insert key, and the Windows® Start key.

Battery check-up

Keeping an eye on your battery level is easy—the Battery tab lets you see how much juice you’ve got left so you’ll never be left powerless.

Making special features more special

Whether your keyboard’s got zoom buttons, an LCD, a TouchDisc, or Media Pad, SetPoint lets you set things up the way you like them. You can speed up or slow down your zoom. Tell your LCD not to bug you with message alerts when you’re listening to music. Change the pointer speed on your TouchDisc. And much more.

Need more help? Get step-by-step instructions for your keyboard.