Ordering online and shipping was outstanding as always. Very easy to set up. Mouse and keyboard requires only one USB slot. The number lock on the keyboard is not lit. Maybe to help not drain the batteries, that's included, but a notification shows up on the desktop if it is on or off. Icon on desktop shows battery charge status for both keyboard and mouse (very helpful). Mouse is very small for my hands. I reverted back to my Logitech LX 8 Cordless Laser Mouse. I would recommend if you like your present LOGITECH cordless mouse, buy the keyboard only. Overall, am happy with purchase and it is a good value.