Introduction
Welcome to the user manual for your Logitech MX Master 2S Wireless Bluetooth Mouse. This guide provides detailed instructions on setting up, operating, maintaining, and troubleshooting your device to ensure optimal performance and a seamless user experience.

Logitech MX Master 2S Wireless Bluetooth Mouse, front view.
Product Overview
Familiarize yourself with the components of your MX Master 2S mouse:

Top-down view of the MX Master 2S mouse with numbered components.
- Speed-adaptive scroll wheel
- Manual shift button
- Gesture button
- Micro USB port (for charging)
- On/Off switch
- Darkfield high precision sensor
- Easy-Switch™ & Connect button
- Battery status LED indicator
- Thumb wheel
- Back/Forward buttons
Setup Instructions
1. Install Logitech Options Software
To unlock the full potential of your MX Master 2S mouse, including customizable buttons and gestures, download and install the Logitech Options software. Visit logitech.com/options for more information and to download the software.
2. Power On the Mouse
Locate the On/Off switch (component 5 in the product overview) on the bottom of the mouse and slide it to the ON position.
3. Connect to Your Computer
The MX Master 2S can connect to up to three different computers. Use the Easy-Switch™ button (component 7) to select your desired channel (1, 2, or 3) and proceed with pairing:
- Bluetooth Connection: Press and hold the Easy-Switch™ button for 3 seconds. The LED indicator will flash rapidly, indicating the mouse is in discoverable mode. Select the mouse from your computer's Bluetooth device list.
- Logitech Unifying Receiver Connection: If you have a Logitech Unifying Receiver, plug it into a USB port on your computer. The mouse will automatically pair with the receiver.
Operating Your Mouse
Speed-Adaptive Scroll Wheel (SmartShift)
The speed-adaptive scroll wheel automatically switches between two scrolling modes based on your touch:
- Ratchet (click-to-click) mode: Ideal for precise navigation of items and lists.
- Hyper-fast (free-spinning) mode: Nearly frictionless scrolling for quickly navigating long documents and web pages.
If SmartShift™ is enabled in Logitech Options, the scroll wheel will automatically switch between these modes. You can enable or disable SmartShift™ in the "Point & Scroll" tab of the Logitech Options software.

The scroll wheel can switch between free rotation and step mode.
Manual Shift Mode
You can manually switch between the two scrolling modes using the manual shift button (component 2), regardless of whether SmartShift is enabled. By default, this button is located on the top of the mouse.
Fixed Scroll Wheel Mode
If you prefer to use only one scrolling mode, you can fix the scroll wheel to either Ratchet or Free Spin mode. This option is available in the "Point & Scroll" tab of Logitech Options, under the "Fixed scroll wheel mode" dropdown.
Important:
Fixed scroll wheel mode can only be enabled if SmartShift is disabled AND no mode-switching function is assigned to any MX Master button.
To enable fixed scroll wheel mode:
- Select "Disabled" from the SmartShift dropdown menu.
- In the "Mouse" tab, click the highlighted mode switch button and select an action other than mode switching.
Thumb Wheel
The thumb wheel (component 9) allows for horizontal scrolling. Simply roll the thumb wheel up (scroll right) or down (scroll left).

Thumb wheel, gesture button, and back/forward buttons.
You can extend the functionality of the thumb wheel by installing Logitech Options software, allowing you to:
- Swap scroll direction
- Reproduce touchscreen gestures
- Adjust scroll speed and resolution
- Navigate tabbed content
- Switch applications
- Swipe between full-screen apps (Mac only)
- Switch between full-screen apps (Windows 8 only)
- Zoom in/out
- Adjust volume
- Control screen brightness
- Display notifications (Mac only)
Gesture Button
The gesture button (component 3) simplifies navigation and desktop management. With Logitech Options software installed, you can enable gesture operations for media management, panning, zooming, rotating, and custom tasks.
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.
To perform a gesture: Press and hold the gesture button, then move the mouse left, right, up, or down.

Gesture button motions for Windows and Mac operating systems.
Examples of gestures for window management:
| Operating System | Gesture Button + Motion | Action |
|---|---|---|
| Windows | Hold + Up | Maximize window |
| Windows | Hold + Left/Right | Snap window left/right |
| Windows | Hold + Down | Show desktop / Display Apps view |
| Mac OS X | Hold + Up | Mission Control |
| Mac OS X | Hold + Left/Right | Swipe between full-screen apps |
| Mac OS X | Hold + Down | App Expose / Mission Control |
Back/Forward Buttons
The back and forward buttons (component 10) are conveniently located near the thumb for easy navigation. Press them to navigate back or forward through web pages or document pages (depending on the mouse pointer's location).
Note:
For Mac users, installing Logitech Options software is required to enable the back/forward buttons. The software also allows you to map other useful functions to these buttons, such as operating system navigation, zooming, or dictionary lookup.
Battery and Charging
Charging Your MX Master 2S
Connect one end of the provided charging cable to the micro USB port (component 4) on the mouse and the other end to a USB power source.

The MX Master 2S mouse connected to its charging cable.
A 3-minute charge can provide enough power for a full day of use. A full charge can last up to 70 days, depending on usage. (Based on 8 hours of daily use; battery life may vary based on usage and computing conditions.)
Checking Battery Status
The three LED indicators (component 8) on the side of the mouse show the battery status:
| LED Lit | Color | Indication |
|---|---|---|
| 3 | Green | 100% Battery |
| 2 | Green | 66% Battery |
| 1 | Green | 33% Battery |
| 1 | Red | 10% Battery (Charge immediately!) |
Install Logitech Options software to receive battery status notifications, including low battery warnings.
User Tips
- The MX Master 2S is highly regarded for its comfortable and precise design, making it ideal for extended office use.
- Leverage the Logitech Options software to customize programmable function keys and tailor the mouse to your workflow.
- The infinite scroll feature is a significant advantage for quickly navigating long documents and web pages.
- While primarily a Bluetooth mouse, it is compatible with Logitech Unifying receivers if you already own one, offering flexible connectivity options.
- Some users appreciate the slightly higher weight of the mouse, contributing to a more stable and controlled feel.
Specifications
| Feature | Detail |
|---|---|
| Brand Name | Logitech |
| Model | MX Master 2S |
| Type | Bluetooth Wireless |
| DPI | 4000 |
| Number of Rollers | 2 (Main scroll wheel, Thumb wheel) |
| Number of Buttons | 1 (This specification typically refers to the primary click button, but the mouse features multiple programmable buttons including left/right click, scroll wheel click, manual shift, gesture, back, and forward buttons.) |
| Hand Orientation | Right |
| Operation Mode | Opto-electronic |
| Power Type | Battery (Rechargeable) |
| Battery Included | Yes |
| Gross Weight | 145g |
| Package | Yes |
| Origin | Mainland China |
Troubleshooting
If you encounter issues with your MX Master 2S mouse, consider the following:
- Connectivity Issues: Ensure the mouse is powered on and fully charged. Verify that the correct Easy-Switch channel is selected. For Bluetooth, ensure your computer's Bluetooth is enabled and the mouse is in discoverable mode. For Unifying Receiver, ensure the receiver is securely plugged in.
- Software Functionality: Many advanced features and customizations require the Logitech Options software. Ensure it is installed and up to date.
- Cursor Movement: If the cursor is erratic or unresponsive, check the Darkfield sensor (component 6) for obstructions. Ensure you are using the mouse on a suitable surface; the Darkfield sensor is designed for tracking on almost any surface, including glass.
- Battery Life: If battery life is shorter than expected, ensure the mouse is fully charged. Reduce DPI settings or disable unnecessary features in Logitech Options if power consumption is a concern.
For more detailed troubleshooting and support, please refer to the official Logitech support website or the comprehensive user manual PDF.
Warranty and Support
For warranty information, technical support, and additional resources, please visit the official Logitech support website. You can also find a detailed user manual in PDF format:
- Logitech Support: Logitech MX Master 2S Support Page
- User Manual (PDF): Download User Manual PDF