1. Introduction
This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your Logitech MK850 Combo, a multi-device wireless keyboard and mouse set. Designed for optimal comfort and productivity, this combo allows seamless switching between multiple devices using either the Logitech Unifying™ receiver or Bluetooth connectivity.
Image: The Logitech MK850 wireless keyboard and mouse combo, along with the USB Unifying receiver.
2. Setup
2.1. Package Contents
Before you begin, ensure all items are present in the package:
- Logitech MK850 Wireless Keyboard
- Logitech MK850 Wireless Mouse
- Logitech Unifying™ USB Receiver
- 2 x AAA Batteries (for keyboard)
- 1 x AA Battery (for mouse)
Image: An illustration showing the complete contents of the Logitech MK850 Combo package, including the keyboard, mouse, Unifying receiver, and batteries.
2.2. Battery Installation
The keyboard requires two AAA batteries, and the mouse requires one AA battery. Batteries are included.
- Locate the battery compartments on the underside of the keyboard and mouse.
- Open the compartments and insert the batteries, ensuring correct polarity (+/-).
- Close the battery compartments securely.
2.3. Connecting Your Devices
The MK850 Combo offers two connection methods: Logitech Unifying™ USB receiver or Bluetooth.
2.3.1. Via Logitech Unifying™ USB Receiver
This method provides a robust 2.4 GHz wireless connection.
- Plug the Logitech Unifying™ USB receiver into an available USB port on your computer.
- Turn on the keyboard and mouse using their respective power switches.
- The devices should automatically connect to the receiver. If not, use the Logitech Options software to pair them.
Image: A close-up diagram of the Logitech Unifying USB receiver, highlighting its compact design and functionality for connecting multiple devices.
2.3.2. Via Bluetooth
Connect your devices directly to Bluetooth-enabled computers, tablets, or smartphones.
- Turn on the keyboard and mouse.
- On both the keyboard and mouse, press and hold one of the Easy-Switch buttons (1, 2, or 3) for 3 seconds until the LED light next to the button starts blinking rapidly. This indicates pairing mode.
- On your computer, tablet, or smartphone, open Bluetooth settings and select 'Logitech MK850 Keyboard' or 'Logitech MK850 Mouse' from the list of available devices to pair.
- Follow any on-screen prompts to complete the pairing process.
2.4. Easy-Switch Functionality
The MK850 Combo allows you to connect and switch between up to three different devices seamlessly.
- On the keyboard, use the dedicated Easy-Switch buttons (1, 2, 3) located above the numeric keypad to instantly switch between paired devices.
- On the mouse, use the Easy-Switch button located on the side to cycle through paired devices.
Image: A visual representation of the multi-device control feature, showing the ability to connect and switch between a desktop PC, a laptop, and a tablet using the MK850 combo.
3. Operating Your MK850 Combo
3.1. Keyboard Features
- Ergonomic Design: The keyboard features a curved layout and a cushioned palm rest for comfortable typing over extended periods.
- Adjustable Tilt Legs: Two sets of tilt legs allow you to choose between 0, 4, or 7 degrees of tilt for your preferred typing angle.
- Quiet Typing: Sculpted, deep keys provide a familiar and comfortable typing sensation with reduced noise.
- Programmable Keys: Customize function keys and other shortcuts using the Logitech Options software.
- Logitech DuoLink: When used with Logitech Options, DuoLink allows you to assign different functions to mouse buttons when holding down the keyboard's Fn key, enhancing productivity.
Image: A user's hands positioned comfortably on the Logitech MK850 keyboard, demonstrating its ergonomic design and cushioned palm rest.
Image: Three side-profile views of the Logitech MK850 keyboard, illustrating its adjustable tilt legs and different typing angles.
Image: A close-up view of the Logitech MK850 keyboard keys, emphasizing their sculpted design for quiet and comfortable typing.
Image: An annotated diagram of the Logitech MK850 keyboard, pointing out key features such as Bluetooth/USB receiver, full-size layout, multi-device connectivity, macOS/Windows keys, multimedia keys, and wireless range.
3.2. Mouse Features
- Hyper-Fast Scroll Wheel: Navigate long documents and web pages quickly with the precision scroll wheel, which can switch between hyper-fast and click-to-click scrolling.
- Contoured Design: The mouse is shaped to fit comfortably in your palm, providing excellent support.
- Programmable Buttons: The mouse features 8 customizable buttons that can be assigned various functions using the Logitech Options software.
- Logitech FLOW: Control multiple computers with a single mouse by seamlessly moving your cursor between screens. You can even copy and paste text, images, and files between computers.
Image: A hand gripping the Logitech MK850 mouse, showcasing its contoured shape designed for comfortable palm support.
Image: A screenshot of the Logitech Options software interface on a MacBook, demonstrating how to customize mouse buttons and settings for enhanced productivity.
Image: Two computers side-by-side with the Logitech MK850 mouse, illustrating the Logitech FLOW feature that allows seamless control and file sharing between multiple systems.
Image: An annotated diagram of the Logitech MK850 mouse, highlighting its hyper-fast scroll wheel, multi-device connectivity, Bluetooth/USB receiver options, customizable buttons, high-precision tracking, and FLOW software compatibility.
4. Maintenance
4.1. Battery Replacement
The MK850 Combo is designed for long battery life, but eventually, batteries will need replacement.
- Keyboard: Approximately 3 years battery life (2 x AAA batteries). Replace when the battery indicator light turns red or performance degrades.
- Mouse: Approximately 2 years battery life (1 x AA battery). Replace when the battery indicator light turns red or performance degrades.
To replace batteries, open the battery compartment on the underside of each device and insert new batteries, ensuring correct polarity.
4.2. Cleaning
To maintain optimal performance and hygiene, clean your devices regularly.
- Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution.
- Avoid harsh chemicals, abrasive cleaners, or excessive moisture.
- For the keyboard, you can use compressed air to remove debris from between the keys.
5. Troubleshooting
5.1. Connectivity Issues
- Devices not connecting: Ensure both keyboard and mouse are powered on. Check battery levels and replace if necessary. For Unifying receiver, ensure it's securely plugged into a working USB port. For Bluetooth, ensure Bluetooth is enabled on your host device and the devices are in pairing mode.
- Interference: Move the devices closer to the receiver or host device. Avoid placing them near other wireless devices or large metal objects that might cause interference.
- Re-pairing: If connection is lost, try re-pairing the devices using the instructions in Section 2.3. You may need to use the Logitech Options software for Unifying receiver re-pairing.
5.2. Performance Issues
- Lagging/Unresponsive: Ensure sufficient battery power. Check for any background processes on your computer that might be consuming resources.
- Software: Ensure you have the latest version of Logitech Options installed, as it often includes performance improvements and bug fixes.
5.3. General Tips
- Restart your computer and the MK850 devices.
- Try connecting the Unifying receiver to a different USB port.
- If using Bluetooth, try removing the device from your computer's Bluetooth list and re-pairing it.
6. Specifications
| Feature | Detail |
|---|---|
| Model Number | 920-008222 |
| Connectivity | Logitech Unifying™ (2.4 GHz wireless), Bluetooth Smart |
| Wireless Range | Up to 10 meters (33 feet) |
| Keyboard Dimensions (H x W x D) | 25 mm x 430 mm x 210 mm (0.98 in x 16.93 in x 8.27 in) |
| Keyboard Weight | 733 g (including 2xAAA batteries) |
| Mouse Dimensions (H x W x D) | 45 mm x 74 mm x 115 mm (1.77 in x 2.91 in x 4.53 in) |
| Mouse Weight | 135 g (including 1xAA battery) |
| Keyboard Battery Type | 2 x AAA Alkaline |
| Keyboard Battery Life | Up to 36 months |
| Mouse Battery Type | 1 x AA Alkaline |
| Mouse Battery Life | Up to 24 months |
| Mouse Sensor Resolution | 1000 dpi |
| Number of Mouse Buttons | 8 (customizable) |
| System Requirements (Unifying) | Windows 10 or later, Windows 8, Windows 7, Chrome OS |
| System Requirements (Bluetooth) | Windows 10 or later, Windows 8, macOS X 10.10 or later, iOS 5 or later, Chrome OS, Android 5.0 or later |
| Color | Black |
| Keyboard Layout | AZERTY (French) |
7. Warranty and Support
The Logitech MK850 Combo comes with a 2-year manufacturer's warranty. This warranty covers defects in materials and workmanship under normal use.
For technical support, warranty claims, or additional information, please visit the official Logitech support website or contact their customer service through the channels provided with your product packaging.
