Logitech MK850 Performance Wireless Keyboard and Mouse Combo

1. Introduction

The Logitech MK850 Performance Wireless Keyboard and Mouse Combo offers a comfortable and productive experience with advanced multi-device functionalities. Designed for seamless switching between multiple devices and optimized for various operating systems, this combo enhances your workflow with ergonomic design and long-lasting battery life.

Figure 1: Logitech MK850 Performance Wireless Keyboard and Mouse Combo.

2. What's in the Box

• Keyboard and mouse set
• Logitech Unifying receiver
• USB extension cable

3. Setup

3.1. Battery Installation

The mouse requires one AA battery, and the keyboard requires two AAA batteries. To install, locate the battery compartment on the underside of each device. Insert the batteries, ensuring correct polarity. The mouse's USB Unifying receiver is typically stored inside its battery compartment for convenience during transport.

Figure 2: Ergonomic design of the Logitech MK850 mouse.

3.2. Connecting Your Devices

The MK850 combo offers two primary connection methods: the Logitech Unifying™ USB receiver or Bluetooth® low energy technology.

3.2.1. Using the Logitech Unifying™ USB Receiver

1. Remove the Unifying receiver from the mouse's battery compartment.
2. Plug the Unifying receiver into an available USB port on your computer. Use the provided USB extension cable if needed to improve signal strength or accessibility.
3. Turn on both the keyboard and mouse using their respective power switches.
4. The devices should automatically connect to the receiver. If not, press and hold one of the Easy-Switch buttons (1, 2, or 3) on the keyboard and mouse until the LED indicator blinks rapidly, then follow on-screen prompts if any.

3.2.2. Using Bluetooth® Low Energy Technology

1. Ensure Bluetooth is enabled on your computer, tablet, or phone.
2. On both the keyboard and mouse, press and hold one of the Easy-Switch buttons (1, 2, or 3) until the LED indicator blinks rapidly. This indicates pairing mode.
3. On your device, go to Bluetooth settings and select the Logitech MK850 keyboard or mouse from the list of available devices to pair.
4. Follow any on-screen instructions to complete the pairing process.

4. Operating Instructions

4.1. Multi-Device Switching (Easy-Switch)

The MK850 combo allows you to pair with up to three devices and switch between them seamlessly. Use the Easy-Switch buttons (labeled 1, 2, and 3) located on both the keyboard and the mouse.

• To switch to a paired device, simply press the corresponding Easy-Switch button (1, 2, or 3) on both the keyboard and the mouse. The LED indicator next to the selected number will illuminate to confirm the active connection.
• This feature allows you to type on your computer, then switch to your tablet or phone with a single press, and continue working.

4.2. Mouse Features

• Hyper-fast Scroll Wheel: The mouse features a hyper-fast scroll wheel. You can switch between precise click-to-click scrolling and ultra-fast scrolling by pressing the button located just below the scroll wheel. This is ideal for navigating long documents or web pages quickly.
• Customizable Buttons: The mouse includes custom buttons that can be programmed for various functions using Logitech Options software. This allows for personalized shortcuts and enhanced productivity.

4.3. Keyboard Features

• Cushioned Palm Rest: The full-size keyboard features an oversized, cushioned palm rest designed for comfort during extended typing sessions.
• Curved Keyframe: The keys are carefully crafted and set within a curved keyframe to promote a natural typing position.
• Adjustable Tilt Legs: The keyboard includes adjustable tilt legs on the underside, allowing you to set the perfect typing angle for your comfort.

4.4. Logitech Flow and DuoLink (Advanced Features)

Enhance your multi-device experience by enabling Logitech Flow and DuoLink through Logitech Options software (downloadable from Logitech's official website).

• Logitech Flow: This feature allows you to seamlessly control multiple computers with a single mouse and keyboard by simply moving your cursor to the edge of the screen. You can even copy and paste text, images, and files between computers.
• DuoLink: Link your keyboard and mouse together for custom functionality. For example, you can hold the Fn key on your keyboard and control your music by simply moving your mouse, providing smarter navigation and shortcuts.

5. Maintenance

5.1. Battery Replacement

The keyboard has an ultra-long battery life of up to 3 years, and the mouse up to 2 years, based on typical office use. When the battery indicator light on either device turns red, it's time to replace the batteries. Refer to Section 3.1 for battery installation instructions.

5.2. Cleaning

To clean your keyboard and mouse, use a soft, lint-free cloth. For stubborn dirt, slightly dampen the cloth with water or a mild, non-abrasive cleaner. Avoid using harsh chemicals or abrasive materials that could damage the surfaces.

6. Troubleshooting

6.1. Connectivity Issues

• Ensure both devices are turned on and have sufficient battery power.
• Verify that the Logitech Unifying receiver is securely plugged into a working USB port, or that Bluetooth is enabled and paired correctly on your device.
• Try moving the keyboard and mouse closer to the receiver or Bluetooth-enabled device to ensure they are within the 10m/30ft wireless range.
• Interference from other wireless devices (e.g., Wi-Fi routers, cordless phones) can affect connectivity. Try moving these devices further away.
• If using the Unifying receiver, try plugging it into a different USB port or using the provided USB extension cable.

6.2. Unresponsive Keys or Mouse Clicks

• Check battery levels and replace if necessary.
• Ensure the correct Easy-Switch channel (1, 2, or 3) is selected for the device you are trying to control.
• Restart your computer or device.
• If issues persist, try re-pairing the devices with the Unifying receiver or via Bluetooth.

7. Specifications

8. Warranty and Support

Logitech products are designed for durability and reliability. For specific warranty information, please refer to the warranty card included in your product packaging or visit the official Logitech support website. For technical assistance, troubleshooting guides, and software downloads (like Logitech Options for Flow and DuoLink), please visit support.logi.com.