This wireless combo is an extremely good value for money. It provides wireless connectivity to your laptop/computer and works well.
Pros: - Works right of the box, no setup needed at all. - Mouse is good in size and not too small, like some other ones. - Keyboard is sturdy and compact shaped. - Highly responsive system with both keyboard and mouse. - Range works as advertised. I am using it from 15 ft distance when laptop is connected to TV.
Cons: - The adapter sticks out about 1".
Can't comment on battery since I have used it for only 2 weeks yet. But they are advertising 24 months and I will be very happy even if I get half of that. There is no shut down switch on mouse & keyboard to preserve battery life as Logitech has built an auto-sleep into it. Hopefully that works.