Logitech MK850 Multi-Device Wireless Keyboard and Mouse Combo, 2.4GHz Wireless and Bluetooth, Curved Keyframe & Wireless Mouse, 12 Programmable Keys, 3-Year Battery Life, PC/Mac, QWERTY UK Layout
Original price was: £109.99.£79.99Current price is: £79.99.
Price: £109.99 - £79.99
(as of Jun 08, 2025 20:40:40 UTC – Details)
Experience next-level comfort and productivity with the powerful Logitech MK850 Performance Wireless Keyboard and Mouse Combo. Fly through documents and web pages with hyper-fast scrolling – and type quietly and efficiently on a full-size keyboard with carefully crafted keys. The cushioned palm rest and curved keyframe give you the support you need, while adjustable tilt legs offer the ideal typing angle and the contoured design of the mouse fits comfortably in your palm. Type and switch seamlessly between your computer, tablet and phone. Pair your mouse with up to 3 devices. Any USB-equipped or Bluetooth Smart ready device that supports an external keyboard (HID profile). In order for your keyboard to work with your device, the device must have built-in Bluetooth capability or be using a third-party Bluetooth receiver or dongle. If your system is Bluetooth-capable and the keyboard isn’t working, the problem is likely a lost connection. The connection between the MK850 keyboard and the computer or tablet can be lost for several reasons, such as: Low battery power , Using your wireless keyboard on metal surfaces. Radio frequency (RF) interference from other wireless devices, such as: Wireless speakers, Computer power supplies, Monitors, Cell phones, Garage door openers Try to rule out these and other possible problem sources that might be affecting your keyboard. If your keyboard frequently stops working and you keep having to reconnect it, try these suggestions:
Keep other electrical devices at least 8 inches (20 cm) away from the keyboard.
Move the keyboard closer to the computer or tablet.
Un-pair and re-pair your device to the keyboard.
Custom Productivity Experience : The MK850 wireless combo gives you increased productivity thanks to Logitech software OPTIONS, allowing you to assign 12 keys and buttons to your favourite shortcuts
Built for Comfort : Designed for all-day typing with oversized, cushioned palm rest, familiar deep-profile keys, curved key frame and adjustable tilt legs; two AAA batteries with a 3-year lifespan
Precision Mouse Control : Contoured mouse’s soft rubber surface fits ideally into your palm, hyper-fast scrolling wheel to fly through webpages/documents. Works with Windows, Mac, ChromeOS, Android
Multiple Device Compatibility : Swapping between PCs, laptops and Macs is simple; type and switch seamlessly between tablets, computers, phone; Pair up to 3 individual devices via Bluetooth/USB receiver
Logitech DuoLink : To get the most out of the MK850 wireless combo, download the Logitech Options software Duolink, link your keyboard and mouse together for custom functionality, smarter navigation
Customers say
Customers find the keyboard and mouse set comfortable to type on with good ergonomics, and appreciate its functionality, particularly its compatibility with Mac OS. The build quality is solid, and the keyboard functionality receives positive feedback for its configurability, with one customer highlighting its customizable shortcuts and settings. While some customers report good Bluetooth connectivity, others experience connection failures, and opinions on value for money are divided between those who find it worth the price and those who consider it overpriced. Customers disagree on the keyboard’s responsiveness.
13 reviews for Logitech MK850 Multi-Device Wireless Keyboard and Mouse Combo, 2.4GHz Wireless and Bluetooth, Curved Keyframe & Wireless Mouse, 12 Programmable Keys, 3-Year Battery Life, PC/Mac, QWERTY UK Layout
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Original price was: £109.99.£79.99Current price is: £79.99.
Mike –
Versatile, good but not for coders
UPDATE: After a month this keyboard is annoying me. The spongy wrist support is a dirt magnet and already look awful. The lack of separation between F and other control keys makes using the keyboard a pest in low light or when in ‘full flow’ and when using KB shortcuts. An Example… to increase audio volume you have to hold Fn + F10, if you hit F11 by accident (the keyboard wills you to do this) then you turn off the machine. I urge caution if you are thinking of buying a “full sized, full layout keyboard”, this one behaves more like a compact keyboard (it does very well in that role). The lack of dedicated media buttons, keys too close and the dirt magnet make me hanker for my old K330. The multi device support is a great idea but I find ‘Mouse without borders’ (see below) has made that feature redundant during daily use.Original ReviewI would recommend this keyboard and mouse combo for daily general use depending on your workflow, I would not say it is the best if you use keyboard shortcuts extensively or for programing (probably not good for gaming either). I love the ability to connect to three machines and save desk clutter – this is the main selling feature and it works well and is a far cleaner solution than the KVM switches of the past.The Keyboard is well shaped, ergonomic and has soft feel keys. You can tilt the keyboard using the usual wee flip out legs on the bottom – Logitech has put two sets of these, one for four degrees and the other for eighth degree – nice!I usually go for the MX ‘Cherry Red’ clickity-clack keyboards and usually find the louder they are the more I like them, however, I like the feel of the K850 – it is quiet but the keys depress far enough (6mm maybe) to feel ‘positive’. I am not a touch typist but almost – I find this keyboard takes my eyes away from the screen more than it should due to lack of grouping of/spacing between ancillary keys, it lacks tactile feedback.This is a full size keyboard, however, the layout has a slightly ‘compact’ feel to it. The main QWERTY keys are fine but the control keys are not. The function keys have no space between F4 and F5 nor between F7 and F8. I like having F keys in groups of 4 with space between the groups. In similar fashion the ESC key is hard against the F1 key. Further, there is very little physical separation between the number row and the F-key row. In practice, I have to actively look for F5 rather than using peripheral vision/muscle memory or tactile feedback to just find it. The ESC key also suffers the same problem, it is crowded. Other keys that, in my opinion, are too crowded and too small are Shift, Cntrl, Fn and Alt on the left side of the board.In general, this keyboard does not make it easy to find ancillary keys by feel. This does make coding or using keyboard driven complex apps slightly more difficult to use and I would imagine gamers would find this problematic too. I’m quite old school I use keyboard shortcuts extensively and prefer this to using a mouse. However, this layout may suit most users better.The other negative is the key printing (see photo). Logitech have tried to make this keyboard OS agnostic – or rather include key labels for both windows and mac, the result is not pleasing at all. So rather than having the “Win” key you have a key labeled ‘Start’ in bold white, a horizontal line and then ‘Alt’ in a grey colour. It’s a bit busy but the main keys are cleanly labeled. This does not bother me too much but I imagine it would make finding the pipe or tilde key difficult for less confident PC users. Perhaps this is aimed at users who will connect to a windows and a rain mac/other machine?The wrist support is a soft rubbery type fabric, it feels nice but is an absolute dirt magnet. No One likes a dirty keyboard but we all hate cleaning nooks and crannies so I would not buy this for a teenage boy… This is a poor choice of material in my opinion. The fabric seems designed to trap dirt, it won’t just wipe away but gets ingrained into the fabric itself. This will become a big annoyance for me as the KB ages.The Mouse is very good. It has three thumb buttons for forward and back and device selection. I do wish they had separated the forward back buttons from the device select button slightly or made the device selector feel different. It works on a shiny surface but I do notice it is smoother on a proper mouse mat. I’m not too fussy about mice as long as they have a scroll wheel, forward thumb key, back thumb switch and center mouse button. This mouse has all of these plus horizontal scroll.The thumb wheel is good and includes tilt (horizontal scroll). The wheel has two modes, free wheeling for rapid scroll down long documents and a ratchet setting for more precise scrolling – the button behind the wheel selects this. It feels nice in hand and encourages a good arm/hand/finger position. However, the center click are not very easy to use without accidentally ‘scrolling’. Probably not a good mouse if you are into CAD.Other than that the mouse feels precise but is also zippy. I use two wide monitors (about 4500 pixels) and can go to screen edges and over to the other machine (see below) without running out of mouse mat. The acceleration algorithm is really good, I am quite happy with the default settings but it is configurable in software (and most OS’s…).Multi-Device SupportYou can pair the KeyB/Mousey combo to 3 devices via Bluetooth or the (1 included) unifying receiver (tiny wee usb dongle). You can use the unifying receiver one one machine and Bluetooth on others or all bluetooth or all unifying receivers (only one included). It just works and just works very well. Once setup, you just press one of the numbered white buttons to select the device and pair to that device – you have to do this on KB and Mouse which is annoying but this also allows you to be mousing on one PC while ‘boarding’ on another (should you care to do that, why I do not know).SoftwareLogitech Options is the software suit which allows you to adjust mouse and keyboard settings, key assignments (per application), mouse speed etc – it is a reboot of ‘Setpoint’. You can also install advanced features such as ‘Flow’ (move mouse from one PC to another). I installed Options, got annoyed because it wants to connect to ‘the cloud’ and then discovered a conflict between Options and my own custom software (to allocate keys etc) – my audio volume became uncontrollable so I uninstalled Options.I tried ‘Flow’ briefly but found it to be more of a dribble than a steady flow, perhaps my mouse has prostate problems? To be fair, my setup is a bit complex and my main PC probably has old copies of Setpoint and other trash that conflicted with Flow. I need to reinstall this PC and maybe try again. There is good support on the Logitech website and people seem to like it but I did not persist with Flow – there are better alternatives.In general, I dislike Logitech’s software and find it works best when uninstalled;) Modern operating systems are more than capable of using all the standard features without adding bloated control apps. While it allows you to customise the combo I find there is no *useful* function that can be achieved within applications or by small third party utilities. I must say, ‘Options’ is optional, it’s not needed to use the combo with multiple devices.Alternative to ‘Flow’ [MS Mouse Without Borders, Windows only]If you have a need to move the mouse/kb between Windows machines then you should search for “Microsoft Garage Mouse without Borders”. This is a MS app that essentially shares any mouse/KB between all (Windows) PC’s. I have two Win 10 boxes on my desk. Number 1 has the Logitech KB/Mouse connected via Bluetooth while the second machine has an old wired KB/mousie – I can use either mouse on either machine (and also share clipboard etc) just by travelling the mouse over (KB follows mouse). As the Logitech is only paired with one machine I can still connect it to two other devices!So, my setup with regard this product is as follows. I use Mouse without Borders to share KB/Mice both ways between my two Windows 10 boxes – this is only one of the three connections. Device Two is a Linux box. Device Three is a Tablet (using BT). The Bluetooth setup was seamless. Switching between devices is flawless and very satisfying.Recommended?Yes, it does work very well. it is built well and any problems with Logitech’s software are most likely easy solvable and options to Options exist. I will probably look for another fuller ‘full sized’ keyboard with better tactile feedback for my coding/CAD/Photoshop machine and consign this KB/Mouse to my ‘office’ machine and for tablets etc.Just one more Inch!Had this just been an inch bigger and the ancillary keys spaced better … sometimes an inch really does make all the difference!
Kevin Mawdsley –
I had my previous Logitech keyboard & mouse for over 10 years with no problems…
I had my previous Logitech keyboard & mouse for over 10 years with no problems but decided I wanted a bluetooth version to make switching between my laptop and desktop easier. It’s not a big deal swapping the USB dongle every time between devices but using a bluetooth connection frees up a USB port on both devices as well 🙂
RichG –
Can pair to a second receiver to switch without a KVM
The rubber feet keep falling off the fold out legs under the keyboard but a minor niggle fixed with superglue. Best bit is that buying a second receiver means I can switch between two PCâs without a KVM.
Adam Lees –
Best mouse and keyboard I’ve ever had
I bought this to replace the Logitech Cordless Desktop MX 5500, as I do a lot of home working. Switching between my work laptop, home laptop and home desktop on my small desk was a pain. No longer, with the MK850 switching is a breeze.This keyboard and mouse can pair via Bluetooth or Unifying receiver to up to 3 devices. Then swapping between paired devices is as simple as pressing one the white keys numbered 1-3, and clicking a button on the side of the mouse to cycle between 1, 2 and 3. The combo comes with a single Unifying receiver. I put this receiver into my home desktop, I paired to my laptop using Bluetooth and my work laptop using a Unifying receiver I have with my older Performance MX mouse (approx 2014). The pairing process was smooth and seamless for the more modern machines. I did try to use Bluetooth for the work laptop but the one I had at the time was older with Window 7 and did not support the enhanced bluetooth needed for these devices. I have a new work laptop now so could try bluetooth with that but it works great with the receiver still in it so I’m going to leave it alone. For the windows 7 machine which had the Setpoint software on it, I had to go into the Unifying software to pair the mouse and keyboard. I had trouble with this the first attempt but it worked fine the next time I tried. However there is a workaround using the unifying receiver if you have trouble pairing with a particular machine, which is to plug the receiver into a different machine, and pair to that using the Options software, then just plug it back in the original machine!The work laptop with its unifying receiver is also still paired with this older mouse that I keep in the laptop case. So when I’m at work I switch on that mouse and it works perfectly as it did. When I’m at home I leave that mouse in the bag and click the device button on the new mouse. It all works very smoothly.If you use the new Logitech Options software (replacement for the older Setpoint software) on all your devices you can configure something called Flow which will seamlessly switch mouse and keyboard between your devices as you move your mouse cursor off one screen onto the other! I haven’t tried that yet as I don’t have admin rights to my work laptop so I can’t install Options on that. Note that you don’t need Options to use these peripherals.The keyboard in this set is the K850. I don’t know if this can be purchased separately. It has a better more positive action than the MX 5500. With that, many keys would stick a little if you strike them at the corner. This does not happen with the K850 When new it feels quite “rubbery”, a very damped travel, and is very quiet. In use however this loosens up considerably and gives the feel similar to many other keyboards of reasonable quality, together with the usual slightly clacky noise you get from most keyboards that get heavy use. It’s not a particularly noisy keyboard by any means, but it is a big contrast between new and virtually silent and worn in. It has a traditional key layout with all the function, control and cursor keys in the “right place” for a UK keyboard. The “windows key” is labelled the start key as it has a different function on a mac. The keys with different function or mapping on a mac are labelled such, with a line separating their displayed mac function from the windows function. The keyboard has two tilt angles from the folding support legs, 3 if you count “flat” with the legs folded away, which I use. The main keyboard area has a slight curve for ergonomic reasons but to me it just feels like a comfortable “normal keyboard” in use rather than a special ergo one that would need getting used to. The fixed palm shelf is some sort of soft touch textured rubber with a woven fabric texture. It feels nice but I’m sure it will trap dust and debris and will not be easy to clean.The mouse is labelled the M720 and can be purchased separately as the “Triathlon M720”. This is a much less sculpted affair than past mice like the MX Revolution, and a bit smaller. It is clearly designed for right handed users but while not ambi, I think left handers could use it without it feeling too awkard. The issue for left handers would be the button placement. It has two programmable thumb buttons which default to browser forward and back. The button behind these is the device switcher. The free spinning (“Hyperfast scrolling”) scroll wheel functions like most mouse wheels as a “third button” if you click down on it, and supports side scrolling if you tip the wheel left or right. Behind this is the mechanical switch button to toggle between free spinning and click to click function on the scroll wheel. Gone is the software controlled function of the MX Revolution but you gain the standard third button function in return.I can’t comment much on battery life as I’ve only owned it for 4 weeks now but the manufacturer claims 24 and 36 month life from the mouse and keyboard respectively, from the non-rechargable batteries supplied. 2 x AAA for keyboard and 1 x AA in the mouse. The Options software still reports battery full for both. Certainly far better than the 2-3 weeks of heavy use from the rechargeable Performance MX and the 4-5 weeks from the MX Revolution.In summary I’m extremely happy with this purchase. I wouldn’t have bought either separately without the multi-device capability but even without that capability, the keyboard is the best I’ve owned and the mouse is about as good as the Performance MX.
riadrifky –
Comfortable keyboard
Comfortable. Itâs a bit noisy when it comes to typing, but acceptable. Overall, very good.
L. Brodie –
Stopped working after two years but had been turned off accidentally instead!
Purchased this in November 2022 and it has just stopped working. Tried changing batteries and looks like there is no power coming through as none of lights are not coming on. Stopped working all of a sudden and the lights were white rather than red, ruling out a low/dead battery issue so this looks like a fault.Anyway, it turns out that the problem was I had turned it off accidentally via the well camouflaged switch on the right side! It is now working with no issues. The only complaint that I have is the letter ‘A’ has worn off but otherwise it is working well as ever.
Munira –
Excellent wireless mouse and keyboard
Great quality
Jules –
Marmite
A bit marmite, might be Ok for somone who does not use a keyboard for a living, is more of a softer touch typists keyboard, has a cheap feel clackityclak on the keys. Thought I’d try a cheapo logitech though, but sadly a no goer for me. Mouse scroll is also hit and miss and cursor a bit laggy.
Gianluca –
I am happy with the keyboard. It works very well. I have connected an old MacBook Pro and 2 laptops with windows. Btw. I tested also with 1 iPad e Samsung table and 1 iphone. (Of course, you can connect only 3 device at once! :D)
Hassan Saeed –
Extremely easy to use. Setup is quick and easy. Bought it because i use it with both windows and MacBook
Jonathan –
Very practical and comfortable set
BOSCHERINI –
Pour le moment rien à dire. Installation facile.
keith hopper –
Product did not work as advertised