If you thought smooth tracking optical sensors were an advancement over mechanical ball-based mice, let us introduce you to the mouse that takes precision and performance to a whole new level: the Logitech® MX™1000 Laser Cordless Mouse, the world's first laser mouse. Now optical is obsolete. And your computing experience will never be the same. Featuring the Logitech MX™ Laser Engine, the MX1000 delivers a new pinnacle of performance no optical mouse can match. With an incredible 20x more sensitivity to surface detail—or tracking power—than optical, laser can track reliably even on tricky polished or wood-grain surfaces. And the MX1000 offers even more advanced features that will make you more productive and more comfortable: