Customer Ratings & Reviews

I got the used version of the keyboard and mouse. It works fine. But the 'I' button on the keyboard is tighter than the rest and I often miss "I" when I type, which I need to fix again and again. A bit annoying. I hope it will get better with time. The mouse is great tbh. I can move the cursor to 3 different display with a click - a great feature. The hand rest is also a good addition to the keyboard. But the keyboard is a bit bulky for my average size study desk.

The keys on the keyboard are my biggest gripe against this set other than the devices not being black similar to the display on the website. Most of the keys have great response but some of the keys (backspace and space bar in particular) have too sluggish or a quicker/noisier response. It is mildly irritating. I'm hoping to trade the kit in for a replacement, and I'll edit this review accordingly.

I ordered this online, got billed twice. Product is great, but i paid twice as much .

I've owned this combo set for 5ish years and half that time it's been on a shelf. The firmware issues are terrible, but hopefully they've been fixed as I'm using the MK850 currently. I bought this set on a very steep sale but I can't recommend it at full price unless you're tech savvy enough to troubleshoot the problems yourself because Logitech customer service is worthless. When it works the MK850 set is comfortable and high quality. However another big gripe is the extremely short range. This set only works reliably if you are sitting at a desktop with the dongle right next to you. Across a small room? No way. Kind of defeats the purpose of wireless peripherals.

Keyboard and mouse work great once they are set up. Instructions are sketchy and hard to understand.

Very good and responsive mouse and keyboard. Excellent !

Very comfortable on the hands. Mouse is multi functional by having settings to pull up programs on computer - great set - I bought a second one for my home office.

Like many of the other reviewers here I have been a loyal Logitech customer for many years... probably 15 in fact. When I saw this keyboard and mouse combo I was impressed. I needed something to easily switch between machines. Sadly, this keyboard and mouse and complete utter garbage. Out of the box, the unifying the connector worked immediately. But pairing to Bluetooth to two different Windows 10 machines was next to impossible. The first computer (a Dell Lattitude E5570 running Windows 10) took several attempts to get it to pair. It would find both the keyboard and mouse easily enough and would ask you to type a code into the keyboard to pair. And then it would pair. But then the light would go to a slow steady blink, which according to support means it is reconnecting. Out of about the 30-times I pressed the button to activate it, it would do the slow steady blink 29 of those 30 times. Only 1 time did the light go solid and I was able to use the keyboard over Bluetooth. For the second custom built gaming rig, I have an Intel Bluetooth card (that is about as vanilla and compatible as you can get with Bluetooth). It would always detect the mouse and keyboard and when you tried to pair it would report as connecting and then always fail and say to "try again". After messing with this thing for 1 hour I put it back in the box and sent it back. I wish I would have taken heed of all the other negative reviews that have mentioned massive connectivity issues with the Bluetooth. The keyboard and mouse were nice to use over the standard USB unifying connector. Just a shame the Bluetooth feature of this keyboard (its main selling point) is absolutely worthless.

First, keyboardists ... that is those who can touch type 95% of their keys, will probably find this keyboard as I did .. frustrating. The good? Logitech did the full inverted T for the cursors, and gave room above that for the standard 6 key horizontal layout of del/ins, home/end, and pgup / pgdwn. Where they failed however, is in key to key spacing across the keyboard. Its like typing on an uncomfortable laptop keyboard, where everything is jammed tightly and causes your WPM to drop because you have to keep going back to correct what you've typed for having miss-typed or inadvertently hit caps lock vs shift or tab as you intended. Because the keyboard was designed to be universal (mac is like what .. 5% or LESS of the market) between PC & MAC it includes the CMD key, a FN key (stupidly on both sides with one smaller on the left and one biggin' on the right) and this makes it *NOT* the keyboard you want it to be. Love the idea of getting 3 dongles to cycle not only my mouse and my keyboard to 3 machines (desktop & 2 laptops) via dongle or bluetooth ... but the keyboard is so uncomfortable to type on for someone that's been using computer keyboards for the better part of 30 years and before using selectric typewriters ... I'm constantly frustrated by such products that take one great step forward, but then perform a complete design stupidity by not just biting the bullet and making two different keyboards. The function key is really not needed at all .. how many people have really looked at their F keys and gotten to know how each keyboard maps different functions there, just like keyboards with dedicated volume and back/home keys for browsers. Its the design to placate idiots that really should just do, verses fit form and functionality. And if it really needed to include one, then having a smaller one on the right side only .. would have been the way to go .. but no... design idiots at Logitech just had to try to be ambidextrous and screw the lot of us. Sadly, though I'd really love to have a keyboard that does 3 PC's or 3 Mac's or combination of the like, this will not work for how tight the alphabetic keys are, and forcing people to type on a smaller than standard size layout. If you're serious about your typing skill and speed, this will *not* be the keyboard for you.

Purchased as a gift. Recipient plugged it in and it worked as expected.

This is plug and play right out of the box. Both are wireless and work flawlessly, I got this at 50% off on a sale and couldn't be happier. I might buy another one for my computer at work. I would recommend this. You need this, buy it now!

Nice, its got that loud clicking noise that some people dont like lol

Mouse is too tricky to use. Still trying to learn how it works.

Great if you want to switch between your computers or devices

Excellent item. Makes my laptop for more user friendly for me

We're used the Logitch KM710 for a while before 'permanently' switching to the KM850s. These are the best keyboard/mice that Logitech makes. Price is extremely good for how impressive they perform.

great keyboard/mouse combo. had for over two years with no issue. 3 bluetooth channels with USB. got for 49 when on sale

Floor Manager helped with my decision and was right! He listened to my needs and away we went to the product. Thanks to all.

This is an awesome concept but execution is in betta stage at best! In short, if you decide to purchase this product, know that you are only buying the concept because the technology in this device is not there yet! So as long as you are fine with PAYING over $100 to deal with glitchy technology and aweful customer service then I say go for it! As for me, I’m returning this puppy tomorrow! Logitech has gotten really sloppy with their products over the last couple of years. I have purchasd several Logitech products in the past (3+ years) and have always been very pleased with the quality and reliable of their technology, Logitech was a name you could trust. However, in recent years (2 yrs give or take a year) I have noticed a significant downward shift. The quality of their products have taken a dive while their prices continue to rise. Logitech Customer Service has never been great, actually pretty darn bad but this was not a big issue because the products worked, well that is no longer the story. To be more specific about my experience, I tried using the toggle with my Macbook Pro. The mouse was glitchy, not showing up on the monitor and I’d have to keep wiggling it to make it come back online. When I paired the keyboard to my iPhone. That function worked as expected but when I tried to switch back to typing on the computer, the keyboard would not pair...yet the mouse worked. I recommend Logitech send this fabulous, CONCEPT ONLY, back to the lab and refuse to release it until it represents the quality standards your company was initially founded on.

Worked for two years then just stopped working one day.