Logitech’s tiny Unifying receiver instantly connects the mouse to your computer—and up to five more compatible wireless mice and keyboards—using just one USB port. The receiver is so small, it can stay in your laptop. And robust 2.4 GHz wireless gives you cordless freedom plus the reliability of a wired connection. • Point-and-click precision With Logitech Advanced Optical Tracking, you have the accurate cursor control you need to do everything on your laptop more quickly and easily.