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Customer Ratings & Reviews

Your price for this item is $90.99
The comparable value price is $99.99

Customer reviews

Rating 4.5 out of 5 stars with 3299 reviews

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  • Value

    Rating 4.5 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.5 out of 5 stars

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90%would recommend to a friend

Customers are saying

Customers admire the MK850 Performance keyboard and mouse combo for its ergonomic and comfortable design, ease of use, and generally good battery life. Many appreciate its compatibility with various devices. However, some users experienced connection issues and occasional lag, while others found the price to be a bit high.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
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Page 1 Showing 1-20 of 41 reviews
  • Pros mentioned:
    Battery life
    Cons mentioned:
    Connection

    Rated 4 out of 5 stars

    Close to perfect...with just a few of complaints

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    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Rounding down from 9/10. Full disclosure, this is the second one of these that I have purchased. First was for the SO, second for my youngest. It's not perfect, but it is very good. The only real issue I have is that occasionally it will stop working and have to be powered off and back on and you may have to re-select the connection (there are 3) via the buttons on the keyboard and/or mouse. Pros: Can be connected to up to 3 devices via bluetooth or the unified receiver Keyboard and mouse are paired together to the unified receiver or bluetooth so if you move one, the other moves as well Very comfortable to use Responsive 99.99% of the time Amazing battery life...over a year on a set for both pairs we have Cons: Occasionally it will disconnect and have to be powered off and back on and/or have the connection re-selected via the keyboard or mouse The last con isn't Logitech's fault, but the unified receiver is USB 2.0 so it really shouldn't be plugged into a USB 3.0 port since the 3.0 port generates a small but impactful amount of Radio Frequency Interference (RFI). To prevent/mitigate this, plug the receiver into a USB 2.0 port as far away (even a couple of inches works) from the next closest populated USB 3.0 port. Definitely would (and likely will) buy another if needed. Great value for the function and quality.

    I would recommend this to a friend
    • Brand response from Logitech
      Posted .

      Thank you so much for taking your time and providing your valuable feedback for the product. We're super glad to hear that love our product. At Logitech, our goal is to ensure that our customer enjoy our products as much as we do.

  • Pros mentioned:
    Keyboard quality
    Cons mentioned:
    Connection

    Rated 4 out of 5 stars

    Finally a Bluetooth PC based keyboard

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I use this keyboard @ work & I’m not sure if it’s our security set up @ work, but there are times when the keyboard goes out of sync & then it takes another 2 to 3 seconds for it to reconnect to the laptop. It’s quite annoying & it’s my only gripe about the keyboard. The keyboard is nice & soft and the mouse is smooth too. But obviously I would love to know if it’s my security set up @ work or it’s the keyboard itself losing connectivity quickly using Bluetooth. If someone else experiences the same issue then please do write it on a review of the product. Otherwise I’m typically a Logitech fan.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use
    Cons mentioned:
    Connection

    Rated 5 out of 5 stars

    Great function - KVM eliminator

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    So I bought this to be able to use on three separate workstations at the same desk. Although I had a switch for my monitor arrays I had three separate keyboards and mice on the desk. Now, I just use this which greatly reclaimed some desk real estate. Effortlessly switches from one machine to the other. Supposedly it can switch seamlessly but I prefer to switch manually (which is just a little thumb switch on the mouse and a little button on the keyboard). All in all, one of those things I wished I had purchased years ago!

    I would recommend this to a friend
  • Pros mentioned:
    Battery life
    Cons mentioned:
    Connection

    Rated 5 out of 5 stars

    Was skeptical, but it works great!

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I had a microsoft wireless keyboard/mouse combo before - 1990's? - and it was a pain. Battery life was horrible, dropped connection, etc... I was a skeptic, but needed something quick. Totally impressed! Battery life is amazing - I don't even turn off the mouse at the end of the day. Synching up with 3 different computers is easy and works great. A couple of keystrokes and I'm on the other computer. Very happy customer!

    I would recommend this to a friend
  • Pros mentioned:
    Keyboard quality
    Cons mentioned:
    Connection

    Rated 4 out of 5 stars

    Versatile but mushy

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This keyboard and mouse bundle is awesome. The keys on the keyboard are very quiet although that comes with the trade off of the keys being too mushy for my tastes. With all the versatility this bundle offers, I have also run into some lag and random disconnecting from devices from time to time, but repairing rarely takes more the 5 seconds. Good bundle for the price I got it for.

    I would recommend this to a friend
  • Pros mentioned:
    Keyboard quality
    Cons mentioned:
    Connection

    Rated 5 out of 5 stars

    Great Keyboard

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works very well! Tried a cheaper version and had connectivity problems. This keyboard & mouse have performed perfectly. The keyboard is easy/comfortable to type on, The mouse fits my hand nicely. It was definitely worth the additional cost.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use
    Cons mentioned:
    Connection

    Rated 5 out of 5 stars

    Oldie but goldie

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very comfortable and easy to use. It's not connecting perfectly all the time but mostly it's good.

    I would recommend this to a friend
  • Pros mentioned:
    Keyboard quality
    Cons mentioned:
    Connection

    Rated 2 out of 5 stars

    Bluetooth pairing inconsistent after a month

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I really love this keyboard. It's wireless, and can switch between three devices. I have it paired to my work laptop and personal laptop. I like the slanted area to rest your wrists. Overall it's very comfortable. I've had it for a little over a month and it's been working amazing until the last couple of days. Today alone, I've had to unpair and re-pair the keyboard with my laptop four times. For some reason the connectivity with my Windows 10 laptop is starting to act up. I was in the middle of writing email and it disconnected from my computer. Nothing in regards to my computer has changed; the laptop is the same, I haven't had any updates done to the system. The keyboard is disconnecting at random times. I'm very frustrated as I'm now past my 30 day return period back to Best Buy, and I'm constantly being forced to go into my settings and re-pair the device to my laptop. What's the point of getting a wireless keyboard if it can't stay connected. A waste of money, please look elsewhere.

    No, I would not recommend this to a friend
  • Cons mentioned:
    Connection, Lag

    Rated 1 out of 5 stars

    do not buy if you value your sanity

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    DO NOT BUY, NEAR FRAUDULENT, in my experience and opinion! i will never buy logitech because of this product(and one other), best buy has lost a great deal of respect for carrying this product and selling it to me, why am i not buying from amazon instead if the product quality control is no different? i have purchased two of this exact thing a year an a half apart, and they both have the exact same issues. both the mouse and keyboard CONSTANTLY disconnect and reconnect while you are in the middle of typing or moving the mouse. the amount of lag delay is unheard of in the modern day. the stuff in the 90's was higher quality. when it disconnects, it will stop typing, but it will remember everything, so while your trying to figure out what is going on, when it finally reconnects it will spam everything you typed while it disconnected. i have tried updating the firmware, the drivers. there are none, they make you download their bloatware(useless), and there are no specific options for drivers or firmware(their firmware update software will not recognize product). and even so, i got the same exact model over a year apart, if it was a driver issue it should have been updated in the product by now. if a billion dollar company cant provide a full product at sale, how are they still a billion dollars? i would define this as literal fraud on logitechs part, and best buy should be ashamed and holds partial responsibility i think. i have hooked this up to 5 different computers, with or without the dongle, it behaves this way. my current main computer is brand new, and modern. it is not anything but this product at fault. i have been a lifelong exclusive to logitech mice and keyboards my whole life. i will never touch this trash to me company again, something seems to have happened to their quality control, perhaps they write it down for tax purposes but dont actually invest in it?

    No, I would not recommend this to a friend
  • Cons mentioned:
    Connection

    Rated 2 out of 5 stars

    Maybe Not

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    At any given moment either the mouse or the keyboard won't connect. They tag-team me. Very annoying. I thought $70 was a good deal for both, but that was presuming they both would work at the same time. I finally gave up and am now using an old keyboard with the new mouse, which every once in a while won't work until I jump-start it using the touchpad on the laptop -- which is new, and hasn't had any problem with other bluetooth devices.

    No, I would not recommend this to a friend
    • Brand response from Logitech
      Posted .

      We apologize for the inconvenience caused by the connectivity issues with the Logitech MK850 keyboard and mouse combo. To address this issue, we recommend reaching out to our social care team via email at socialcare@logitech.com with your
      - Name:
      - Email Address:
      - Country:
      - Product Name:
      - Brief description of issue:

  • Cons mentioned:
    Connection

    Rated 5 out of 5 stars

    I can recommend

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    No noticable latency when typing, and no connectivity issues like I've had with other similar devices.

    I would recommend this to a friend
  • Pros mentioned:
    Keyboard quality
    Cons mentioned:
    Connection

    Rated 2 out of 5 stars

    great for someone else

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The keyboard has a good feel to it and I liked the shape of the mouse. However, I work in AutoCAD and Bluebeam. While in these programs, when I would move the mouse, the scroller would move without me touching it and would zoom in and out of the document without my wanting it too. I could probably get use to this function with time but I don't really want to have to mess with that at all. Also, they both lost connection after a few days for no apparent reason and had a rough time reconnecting even though I was using the USB adapter. Oh well. Hopefully they work out these kinks because I love logitech!

    No, I would not recommend this to a friend
  • Cons mentioned:
    Connection

    Rated 5 out of 5 stars

    Great

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good reception of mouse to desktop through wood. Only one connection for both keyboard and mouse!

    I would recommend this to a friend
  • Cons mentioned:
    Connection

    Rated 4 out of 5 stars

    Works Ok

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I got this one as the other wireless keyboard/mouse combo I was using kept losing connection. This one is much better but does lose the connection occasionally. It has the capability of connecting to two other devices but I haven't tried that yet.

    No, I would not recommend this to a friend
  • Cons mentioned:
    Connection

    Rated 3 out of 5 stars

    Not the best for the price

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    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Keyboard and mouse are okay. Not the best I have used. My keyblard sometimes looses connection with transmiter and i have to manually shut it off and back on, the good thing is that it does connect fast. It takes about half a second after turning it on to connect.

    I would recommend this to a friend
  • Cons mentioned:
    Connection

    Rated 4 out of 5 stars

    Great Function

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works great, ONCE you get it to connect. Have a brand new Lenovo and it took forever to connect, even after drivers and such were installed it would not work. Had to have IT deal with it and I am pretty technical.

    I would recommend this to a friend
  • Cons mentioned:
    Connection

    Rated 2 out of 5 stars

    Not as expected.

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I am not happy with this keyboard. First of all, I didn't realize that the keys were not backlit. I like that it can be paired with 3 devices, but I can only seem to pair one device at a time. The keyboard ofen goes out. It's paired as a #2 device, but the mouse is paired as a 3 in order for both of them to work with my pc. I tried to exchange it at the store for another keyboard but was told that it could only be exchanged or returned within 15 days of purchase. I wish that they had pointed that out when we bought the keyboarf. We were already in the 25th day when I decided to contact Best Buy. I was trying to see if i could live with it, so was giving it time. Now im stuck with this.

    No, I would not recommend this to a friend
  • Cons mentioned:
    Connection

    Rated 5 out of 5 stars

    Great for multiple PC's

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I love this keyboard it works great most of the time. Sometimes the connectivity tweaks out for a second but the ability so switch between PC's is great

    I would recommend this to a friend
  • Cons mentioned:
    Connection

    Rated 4 out of 5 stars

    Decent keyboard

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good keyboard but some times it will lose connection.

    I would recommend this to a friend
  • Cons mentioned:
    Connection, Lag

    Rated 1 out of 5 stars

    Connectivity issues

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Loses connection with unifying receiver extremely frequently. When working lag is frequently experienced. I have spend hours of unproductive time due to this keyboard and mouse. I will be replacing it and probably not with a logitech

    No, I would not recommend this to a friend
    • Brand response from Logitech
      Posted .

      That's unfortunate! Refer the mentioned steps and check if that helps to resolve the issue: 1. Verify the product or receiver is connected directly to the computer and not to a hub, extender, switch or something similar. 2. Move the device closer to the USB receiver. If your receiver is in the back of your computer, it may help to relocate the receiver to a front port. In some cases the receiver signal gets blocked by the computer case, causing a delay. 3. Keep other electrical wireless devices away from the USB receiver to avoid interference. 4. Try on a different computer. Incase if the issue still persists, reach out to Logitech Support Team.