I have used the Logitech Wave for over 5 years and recently purchased a new model to replace my existing one. The battery life was very good on the old one and hopefully it is much improved on this one as stated on the box. Very comfortable, easy to use and a great value.

This was a while coming and then has a US keyboard layout. So I now have to remember touch typing skills.

This wireless keyboard from Logitech features an angled key frame that's also wave shaped laterally to provide the most comfortable typing angles for your fingers, hands, and wrists. There is also an integrated wrist wrest to ease the stress on your arms and wrist during long periods of use.

A person who uses this for web browsing or document production, would probably not notice too much. Although a FPS gamer would probably go crazy in frustration. I used it with my Win 8.1 Pro O/S. I even installed the "Set Point" & "Unifying Software"drivers from Logitech online.

both keyboard and mouse function quite well, easy setup and use. Only major drawback it the the overall bulky size of the keyboard. Much to large for many keyboard slides.

I received the k350 keyboard, but it work well. I received it in place of my order of a M550 but I look it up and i found no different. I got a good deal.

I bought this product as I am studying and therefore typing a lot! I love that it is wireless, so no more painful cords, and the lay out of it makes it so comfortable to use for long periods of time. Wish I had got it sooner!

Keyboard and mouse combination is very nice. They work with my existing adopter

With my computer below my desk, I had to use the extender cable to raise the height of the receiver to about 1ft above the level of the keyboard and mouse in order to get a strong signal to the receiver, no issues with range after that.

Excellent range when receiver is above the level of the devices; ergo design is decent enough so it it comfortable to type on for extended periods

Keyboard is a little on the noisy side for a non mechanical keyboard; Comes with cheap batteries that don't last; Device range is extremely poor when the receiver is below the level of the devices; Mouse shape is uncomfortable for my hand/wrist for extended use

Too much Comfortable, Ideal keyboard for Giky persons.