Logitech MK850 Performance Wireless Keyboard and Mouse Combo

BH #LOMK850 • MFR #920-008219
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Logitech MK850 Performance Wireless Keyboard and Mouse Combo
Key Features
  • Bluetooth Smart Compatible
  • Wireless 2.4 GHz with Included Receiver
  • Oversized Cushioned Keyboard Palm Rest
  • Concave Keys with Large Strike Area
Everything about Logitech MK850 Performance Wireless Keyboard and Mouse Combo has been built with comfort in mind. If you do a lot of typing, you'll enjoy the oversized, cushioned palm rest and curved keyframe. The full-sized keyboard has concave keys with a large strike area to help prevent unintentional keystrokes. Also, 3-position tilt legs let you angle the keyboard from flat, to 4- or 8-degrees for optimal alignment.
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Logitech MK850 Overview

Everything about Logitech MK850 Performance Wireless Keyboard and Mouse Combo has been built with comfort in mind. If you do a lot of typing, you'll enjoy the oversized, cushioned palm rest and curved keyframe. The full-sized keyboard has concave keys with a large strike area to help prevent unintentional keystrokes. Also, 3-position tilt legs let you angle the keyboard from flat, to 4- or 8-degrees for optimal alignment.

The 8-button mouse is contoured for right-handed use and the rubber surface is both extra soft and easy to grip. It features a Hyper-fast scroll wheel and 1000 dpi Logitech Advanced Optical Tracking sensor for precise navigation control.

Bluetooth Smart
Both the keyboard and mouse connect to Bluetooth Smart Ready compatible devices using Bluetooth Smart. With Bluetooth Smart, the keyboard and mouse will remain paired, but in sleep mode when not used for an extended period. This ability to sleep and wake gives them a boost in battery life, while relieving the frustration of constantly having to pair the devices over and over.

To that end, the keyboard has a battery life of up to 36 months, while the battery life of the mouse is up to 24 months. They keyboard is powered by 2 AAA batteries, while the mouse is powered by 1 AA.
Unifying Receiver
If you can't utilize Bluetooth for a wireless connection, this combo supports a second option called the Unifying Receiver. The included Unifying Receiver is a small USB dongle that plugs into your computer and connects the keyboard and mouse via 2.4 GHz.
Multi-Device Multi-Tasking
This keyboard and mouse can connect and switch between multiple devices with the touch of the special 1, 2 and 3 buttons on the keyboard. A corresponding numbered light will illuminate on the mouse to indicate which device is enabled.

Start typing on your computer and then switch to a tablet or smartphone. This ability works with any USB-equipped or Bluetooth Smart ready device that supports an external keyboard and has been optimized for use with Windows, Mac and Chrome.
Dual Layout
The MK850 works with Windows and Mac operating systems, allowing and you to switch between all the devices you have connected.

Key Labels: Colors identify functions. Gray labels for Apple devices running Mac OS X or iOS. White labels on gray circles for Alt Gr on Windows computers.

Split Key Labels: Above the split line shows the modifier sent to a Windows Android or Chrome device. Below the split line shows the modifier sent to an Apple Macintosh, iPhone, or iPad.
Hot, Media, and Shortcut Keys
The typical "F" or function keys at the top of the keyboard put in double-duty as hot keys, media keys and shortcut keys. Use them to copy, paste, play, pause, adjust volume and more.
Light Indication
Built-in LEDs indicate whether the batteries need to be replaced, whether Bluetooth is connected, or if the Caps Lock key is engaged.
System Requirements
Keyboard (Unifying Receiver): Windows 10 or later, Windows 8, Windows 7, Mac OS X 10.10 or later, Chrome OS, and Linux kernel 2.6 or higher
Keyboard (Bluetooth): Windows 10 or later, Windows 8, Mac OS X 10.10 or later, iOS 5 or later, Chrome OS and Android 5.0 or later
Mouse (Unifying Receiver): Windows 10 or later, Windows 8, Windows 7, Mac OS X 10.10 or later and Chrome OS Mouse (Bluetooth): Windows 10 or later, Windows 8, Mac OS X 10.10 or later and Chrome OS
UPC: 097855124265

Logitech MK850 Specs

Mouse
Sensor Type
Optical
dpi
1000
Scroll Type
Scroll Wheel
Number of Buttons
8
Mouse Hand Orientation
Right
LED Indicator
No
Keyboard
Mechanical Switch
No
Travel Distance
0.7" / 19 mm
Maximum Key Rollover
No
Dedicated Multimedia Keys
No
LED Illumination
No
Wrist Rest
Integrated
Connectivity
Connection
Wireless: Logitech Unifying (2.4 GHz RF) USB-A Dongle or Bluetooth 4.0 Built-In
Full-Functionality OS Support
Android, Chrome OS, Mac, Windows, iOS
Battery
Battery
1x AA (Mouse)
2x AAA (Keyboard)
Maximum Battery Life
Mouse:
18 Months

Keyboard:
36 Months
General
Color
Black
Dimensions
16.9 x 8.3 x 1" / 430 x 210 x 25 mm (Keyboard)
4.5 x 2.9 x 1.8" / 115 x 74 x 45 mm (Mouse)
Weight
25.9 oz / 733 g (Keyboard)
4.8 oz / 135 g (Mouse)
Packaging Info
Package Weight
2.8 lb
Box Dimensions (LxWxH)
20.5 x 8.75 x 2"

Logitech MK850 Reviews

Connectivity Issues

By HUGH GAPENUS
Rated 3 out of 5
Date: 2026-06-15

The keyboard looses connectivity with the computer and has to reconnect. Sometimes it goes quickly, others it's a few minutes. It's annoying. I downloaded software update thinking that was the issue and largely it solved the problem, but it still has it's moments.

Not good. Logitech is moving backwards.

By Tom B
Rated 1 out of 5
Date: 2026-03-15

There was no usb dongle in the package! So I had to use bluetooth as the connection. Using bluetooth is very herky-jerky (technical term). The mouse and keyboard delay is so annoying. I don't recommend.

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