Logitech MK550 Wireless Wave Keyboard and Mouse Combo - Includes Keyboard and Mouse, Long Battery Life, Ergonomic Wave Design, Black

The new Wave combo uses a different receiver - a tiny stick, vs the previous, which was about like a memory stick. You can still remote it as was the case in the previous style if your available USB slots don't present well for your activity with either keyboard or mouse. This is their universal receiver - handling up to 6 devices. As my wife has a Logitech mouse, with the presumed same receiver, I wondered about conflict. So far, neither of our devices have triggered the other's receiver. So, I am guessing/presuming that there are a large number of frequencies used. However, I have no idea how they associate, as there aren't the "connect" buttons on the mouse or keyboard as there were on the earlier version. How, you might ask, do I know so much about the earlier version? I had one, and the mouse failed. I gave away the perfectly good keyboard (and the dead mouse), as the mouse could not be replaced, being supplanted by their new universal system. That being the only negative I had regarding the previous version, let's move on to my real review... This style keyboard instantly cured me of my carpal tunnel equivalent in my elbows. I'm 6-4, with 38" sleeves, which should minimize the distortion needed to place my hands in accordance with the usual keyboard layout - but it wasn't. My first swept keyboard was a wired Microsoft Natural. The second was a wireless keyboard and mouse, also Microsoft Natural. In that case, the failure was on the keyboard - one of the keys' circuit film's trace lines broke, depriving me of many keys on the bottom row. Repair was not an option. Going looking, at the time (many years ago, now), I found that Logitech had a competitor. Better, it was less expensive. I ordered it. This one is contoured. My fingers fall naturally to the level of the keys, which are - as the name suggests - in a wave pattern. That's a bonus over the Microsoft version, and at a substantially lesser price. I finally got to looking (I expect the prior one had them also) at the hotkeys, which actually work, on my keyboard. I've become spoiled. The "off" button on the keyboard (extreme top right) is very much faster at shutting down my XP system than any other I'd used previously. The media center buttons are a joy, and all the others I've tried are like playing in the toy store for me. The new keyboard has a much softer touch and sound than the previous, which, as I'm heavy handed (I learned on manual typewriters), is a relief to the neighbors (we live on a boat; I'm kidding, but my wife appreciates the relative quiet). As my computer has only two USB slots on the front, I use the extension for the receiver because we have the computer mounted under a shelf and behind a bench, making reception a bit dicey in general, but especially for the desk I use, which is directly in front of the computer where the receiver would be behind all the various metal and electronics as relates to the "view" of both keyboard and mouse. We routinely use the mouse remotely, as that's how we do our movies aboard; we move the monitor to a shelf, and the mouse does all the navigation from that point forward, sitting at 90° from my desk, and out several feet. I simply can't, for any extended period of time, be without a "natural" keyboard. Just the couple of weeks where I used my backup, PS2-wired keyboard and mouse, led to my elbows complaining loudly. Thus, this was a no-brainer for me. However, it goes beyond merely a sweeping set of keys; it's comfortable, quiet, my hand falls naturally to the wave pattern (your - longest - middle fingers' keys are lower than the surrounding keys, and so on out from there) and fully featured. Fortunately, when one of these eventually dies, I'll now be able to replace the individual component (all of these devices are available separately), instead of having to buy a whole set. Can you tell I like it?

This keyboard is a workhorse. I bought it in April 2013, have used it nearly every day since then, and it's still going strong today in 2023 without an issue. Not only is it the most comfortable (i.e. ergonomic) and well designed and durable keyboard I've ever owned, but I especially like how many of the keys can be configured to my needs. It's convenient to be able to configure and access a function or app with a single press of a key or key combo. If I need to put my computer to sleep, I just press a key. If I need to access a calculator, or email client, or spreadsheet, or word processor, etc., I press a key. If I want to launch or control the music or video I want to enjoy, I press a key or two. The M510 mouse that's included in this MK550 keyboard package is also still working well and much better than the newer M705 mouse that comes with the MK570 keyboard package which I bought two years ago for a second computer and comes with the same keyboard (K350). As for the amount of battery juice it consumes, well, very little. I use 2800 mAh 1.2v rechargeable batteries in the keyboard, and I typically only need to recharge them once or twice a year, depending on how much I use them. The mouse batteries will typically need to be recharged a little more often, though less often than my Nulaxy ergonomic mouse that uses two AAA-sized batteries. In my experience, the only drawback with using rechargeable batteries in the keyboard and mouse is that you don't get a warning message when the battery charge gets low; but that's probably because of the nature of rechargeable batteries. I'll have to admit, the keyboard has spoiled me rotten; so, when I type on another keyboard, I hate it...HATE IT, which is the only thing I don't like about this keyboard. Working on other keyboards always seems to make jobs more difficult, and it always makes me miss my K350 keyboard. Yes, spoiled! So, consider yourself warned. Oh, and I should add, in case it's crossed your mind (which is understandable here), I'm not getting any kudos for this review. I just really like this keyboard and have always been impressed with it. And the fact that it's still rocking and rolling without a complaint after ten years of pounding its keys, just adds to my love affair with it.

Size and use is ok but I overlooked the fact that typing makes a noise so while on conference calls, if I’m not on mute, the loud typing noise carries to my colleagues/ quite a nuisance! Also, not sure if it’s the Bluetooth or another issue but the connection to my laptop is often very slow.

Overal impression: This keyboard is quite big and takes up a lot of room on a desk because of its design, but it's so comfortable to type on that I don't really mind. The good: Very comfortable and accurate for touch-typing. The keys have a good travel distance and feel which interestingly results in fewer typos than typical for me (eg on a laptop keyboard). The ergonomic contours and fixed palm rest are very comfortable for extended use, even if they are not as exaggerated as some of the more "medically proper" ergonomic designs out there. Wireless is of course a big plus, especially with the included standard Logitech nano-dongle. The okay: I'm not a fan of the extra large media buttons at the top, since I rarely use them, and it makes the keyboard larger than it really had to be, especially for smaller desks. But if you frequently use "volume up/down/mute/play/pause/next track/previous track" buttons while working, you might appreciate them more. The good news here is that the media buttons work for pausing or skipping tracks in Spotify web player even when it's running in the background, and you're working in a different browser window or application in the foreground.

Me gustó mucho y es igual a la descripción.

キーが間違ってる ＆を押せば’が入力されるし 絶対買わない方がいい！ これはゴミだ

Overall I am very pleased with this keyboard. It worked perfectly right out of the box including all the pre-programed buttons. I already had one of the 'unifying' dongles so just had to find the instructions for adding it and follow them (turns out it just involves using the switch on the bottom to turn the unit off, then on again). That also worked as promised with the software quickly finding and installing the keyboard. My old SK-6000 keyboard (which saw me through more the last 20 years) was very large with big beautifully spaced keys and an incredibly comfortable curve (once you got used to it). With that as my standard I have to dock a point simply because this keyboard has slightly smaller and more cramped keys. I have large hands and cannot work comfortably with the regular keyboards. I need a large keyboard with large well-spaced keys, and while this is the best I have found it is still a bit small for me. The ergonomic design is good, and the padded wrist rest is soft and comfortable. The keys also also have a nice back pressure without being stiff or hard. While slightly small for my big hands, the keys and board are are still large enough to be comfortable - I am sure it will not take long for me to adjust. So overall I can certainly recommend this keyboard. Anyone who does a significant amount of writing/programing will really enjoy the ergonomic design, and casual gamers will love the ability to customize keys. There is even a set of video control buttons for those who watch movies on their computer. Update: More than 2 years and it is still going strong. It even survived a drink spilling on it, though the keys became sticky until I took it apart and carefully wiped each part. It took a bit of work, but was worth it. Overall, the keyboard still works great. Update: it's 2020 now and 2 of the number keys have stopped working so I've bought a replacement. After 7 years and enough use that the letters on some of the keys have completely worn off it is still functional enough that I am keeping it as an emergency backup.