KensingtonPro Fit Ergonomic Wireless Keyboard, Bluetooth - Black (K75401US)

I love this keyboard and mouse set. I've changed jobs and made sure to order this same set again. The mouse is comfortable and very responsive on my desktop pad. I love how silent the keys and mouse are when I'm working. The curved position of the keyboard is ideal and when I have to switch to my laptop keyboard, it feels cramped. I haven't actually used the Bluetooth connection so I can't speak to that, but this is a fantastic ergonomic keyboard mouse set!

I purchased this set to replace a long-trusted Microsoft Ergonomic keyboard and mouse combo, and overall I’m very pleased with the performance and comfort. The mouse is a standout—ergonomic, responsive, and smooth to use. It fits the hand well and is comfortable even during long work sessions, which is crucial for my daily routine.The keyboard has a comfortable wrist rest and the split design supports natural hand positioning. However, there’s a bit of a learning curve. Some of the keys—specifically around the backspace—are placed too closely to special function buttons like the calculator shortcut and F-lock. I frequently hit these by accident, which opens the calculator or disables function keys unexpectedly. This disrupts my workflow more often than I’d like.Still, the overall quality of the materials, the wireless range, and battery life are impressive. This set has noticeably improved my desk ergonomics and reduced wrist strain over time. If you're used to another ergonomic setup, just expect a short adjustment period—but once you do, it's a worthwhile upgrade.

This is the worst keyboard that I have every used. I bought it to replace a different ergonomic keyboard with split-layout which had worn out after many years of use, and so I thought that it would be easy to transition to this one given that I was already familiar with the split layout and tilted wrist angles, but I was SO WRONG!! The top list of things that I hate about this keyboard are that:1.) the vertical angle of key columns changes as you get closer to the center of the keyboard, so your pinky fingers need to move straight up and down but the index fingers have to move at angles. Do they think we pivot our wrists as we type depending on which key we press?!? Most of the time I try to use the shift key to capitalize something, I end up hitting the caps-lock key instead.2.) the keys are so close together that I am constantly hitting the wrong key with the side of my fingers. This is especially true of the top row of function keys.3.) as a combination of my first two complaints, I am CONSTANTLY making typos with this keyboard because of the wonky layout, and so I am hitting the backspace key a LOT to make corrections, but most of the time my pinky finger grazes the stupid "calculator" button just a slight distance above the backspace key and so that brings up like 5 instances of the calculator application on top of each other by the time I realize I wasn't on the backspace key after all. The net result is that my effective typing speed is less than half of what it normally is because of how many errors I make with this keyboard and how long it takes to make corrections due to the backspace / calculator button issue4.) the "6" key is on the left side of the keyboard which prevents me from using my right index finger to type the number 6. I cannot get used to this even after months of using this awful keyboard5.) the keys are just overall very small so I am constantly catching other keys as I type6.) the "wake up" time is obnoxious so the first few keys that I press after even a short amount of not typing are lost.I hope this review is helpful to save someone else from making the same mistake that I did when buying this. I had hoped that after a few months of using it that I would get used to its quirks but by this point I am convinced that it just terrible design.

To start, as an ergonomic keyboard, this delivers. The keys are a little closer together than most keyboards I've used before, but you get used to it. The slightly more compact layout makes this a good keyboard for a home office where you may not have a ton of space available. The wrist angle is perfect. I like the key sensitivity. I would say this keyboard is best for a reasonably fast touch typist with firm but not hard taps. A slow typist or someone who hits keys hard will probably find more multiple letters happening, that kind of thing.What I don't like: to save battery life, the keyboard goes to sleep very quickly. This means you often find nothing happening when you type, until a few words in and the keyboard wakes up--and then you have to retype the missing characters. Or you think you have copied something, go to paste it, and nothing happens because the keyboard is still asleep. It seems like hitting the enter key is the best way to wake it up, if you can remember to do it. It performs significantly better with Bluetooth than with the IR connection, but the lag time is still significant enough to be annoying. I've also found that once in a while, a key will seem to get stuck and spool out a couple hundred characters which you then have to go back and delete.All in all, despite the issues, I rate this keyboard pretty highly, because the ergonomic benefit is great and I like not having extra cords around for my ferrets to get involved with. Perhaps future versions could have a stronger battery system and longer wake times.

Using the 2.4 Ghz dongle the keyboard and mouse have to be woke up if you let them set idle for even a few minutes so if you start typing you will miss the first few key strokes and you have to jiggle the mouse to get a pointer. This last month the scroll wheel stopped working. You can spin it all you like but it will not scroll. Tried reinstalling the driver and also tried it on a different computer but still doesn't work.