Logitech MX Master 3 User manual

DETAILED SETUP

1. Make sure the mouse is turned on — the number 1 LED on the bottom of the

mouse should blink quickly.

NOTE: If the LED is not blinking quickly, perform a long press (three seconds).

2. Choose how you want to connect:

• Use the included wireless USB receiver

Plug the receiver into a USB port on your computer

• Connect directly using Bluetooth

Open the Bluetooth settings on your computer to complete the pairing.

Click here for more details on how to do this on your computer. If you experience

issues with Bluetooth, click here for Bluetooth troubleshooting.

3. Install Logitech Options Software.

Download Logitech Options to use all the possibilities this mouse offers. To

download and learn more about Logitech Options, go to logitech.com/options.

LEARN MORE ABOUT YOUR PRODUCT

Product Overview

1 – MagSpeed scroll wheel

6 – USB-C charging port

2 – Mode shift button for the scroll wheel

7 – On/Off button

3 – Gesture button

8 – Darkfield 4000DPI sensor

4 – Thumb wheel

9 – Easy-Switch & connect button

5 – Battery status LED

10 – Back/forward buttons

Pair to a second computer with Easy-Switch

Your mouse can be paired with up to three different computers using the easy-switch

button to change the channel.

1. A short press on the Easy-Switch button lets you switch channels. Select the

channel you want and go to the next step.

2. Press and hold the Easy-Switch button for three seconds. This puts the mouse in

discoverable mode so that it can be seen by your computer. The LED will start

blinking quickly.

3. Choose how you want to connect the keyboard to your computer:

• Bluetooth: Open the Bluetooth settings on your computer to complete the pairing.

You can find more details here.

• USB receiver: Plug the receiver to a USB port and open Logitech Options. In

Options, select Add devices > Setup Unifying device, and follow the

instructions.

MagSpeed adaptive scroll-wheel

The speed-adaptive scroll wheel shifts between two scrolling modes automatically. As

you scroll faster, it will automatically shift from line-by-line scrolling to free-spinning.

• Line-by-line (ratchet) mode — ideal for precise navigation of items and lists.

• Hyper-fast (free-spin) mode — near-frictionless spinning, letting you fly through

long documents and web pages.

Switch modes manually

You can also manually switch between modes by pressing the mode shift button.

By default, mode shift is assigned to the button on top of the mouse. Use the Logitech

Options Software, to disable SmartShift if you prefer to stay in a single scrolling mode

and shift manually. You can also adjust the SmartShift sensitivity, which will change

the speed required to automatically shift into free spinning.

Thumb wheel

Scroll side to side effortlessly with a stroke of your thumb.

Install Logitech Options software to extend thumb wheel capabilities:

• Adjust thumbwheel scrolling speed, and direction

• Enable app-specific settings for the thumbwheel:

• Zoom in Microsoft Word and PowerPoint

• Adjust brush size in Adobe Photoshop

• Navigate your timeline in Adobe Premiere Pro

• Switch between tabs in the browser

• Adjust volume

• Assign custom keystrokes to the wheel rotation (up and down)

Gesture Button

Install Logitech Options software to enable gestures.

To use the Gesture button:

Hold down the Gesture button while moving the mouse left, right, up, or down.

Gesture Button

Windows 10

Mac OS

Single press

Task View

Mission Control

Hold and move

down

↑

Start Menu

↑

Mission Control

Hold and move up

↓

Show/hide desktop

↓

App Expose

Hold and move

right

→

Switch between desktops

→

Switch between desktops

Hold and more left

←

Switch between desktops

←

Switch between desktops

You can use gestures for desktop navigation, app management, pan, zoom, and more.

You can assign up to five different actions to the Gesture button. Or map gestures to

other MX Master buttons, including the middle button or manual shift button.

Back/Forward buttons

Conveniently located, the back and forward buttons enhance navigation and simplify

tasks.

To move back and forward:

• Press the back or forward button to navigate web or document pages, depending

on the location of the mouse pointer.

NOTE: On the Mac, enabling of the back/forward buttons requires installation of

Logitech Options software.

Install Logitech Options software to unlock new capabilities for the back/forward

buttons.

In addition to enabling the buttons for use with Macs, Logitech Options software lets

you map other useful functions to the buttons, including undo/redo, OS navigation,

zoom, volume up/down, and more.

App-Specific Settings

Your mouse buttons can be assigned to perform different functions for different

applications. For example, you can assign the thumb wheel to do horizontal scrolling

in Microsoft Excel and zoom in Microsoft PowerPoint.

With Logitech Options, you can install predefined app-specific settings that adapt the

mouse button behavior to be optimized in selected applications.

The following app-specific settings have been created for you:

Default settings

Middle Button

Horizontal scroll

Back / Forward

Browser

(Chrome, Edge,

Safari)

Open link in a new

tab

Switch between tabs

Back / Forward

Microsoft Excel

Pan

(Hold and move the

mouse)

Horizontal scroll

Undo / Redo

Microsoft Word

Pan

(Hold and move the

mouse)

Zoom

Undo / Redo

Microsoft PowerPoint

Pan

(Hold and move the

mouse)

Zoom

Undo / Redo

Adobe Photoshop

Pan

(Hold and move the

mouse)

Brush size

Undo / Redo

Adobe Premiere Pro

Pan

(Hold and move the

mouse)

Horizontal timeline

navigation

Undo / Redo

Apple Final Cut Pro

Pan

(Hold and move the

mouse)

Horizontal timeline

navigation

Undo / Redo

With these settings, the Gesture button and the wheel mode-shift button are keeping

the same functionality across all applications.

Each of these settings can be customized manually, for any application.

Flow

With Logitech Flow, you can work on multiple computers with a single MX Master 3.

You can use the mouse cursor to move from one computer to the next. You can even

copy and paste between computers, and if you have a compatible Logitech Keyboard,

such as MX Keys, the keyboard will follow the mouse and switch computers at the

same time.

You will need to install Logitech Options software on both computers and follow

these instructions.

Battery

Charge mouse battery:

Connect one end of the provided charging cable to the USB-C port on the mouse and

the other end to a USB power source.

A minimum of 3 minutes charging gives you enough power for a full day of use.

Depending on how you use the mouse, a full charge can last up to 70 days.

NOTE: Battery life may vary depending on user and operating conditions.

Check mouse battery status:

Three LED light on the side of the mouse indicates battery status.

Install Logitech Options software to receive battery status notifications, including low-

charge warnings.

LED Color

Indications

Green

From 100% to 10% charge

Red

10% charge or below

Pulsing green

While charging

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