Introduction
The Logitech MX Anywhere 3S is a compact, high-performance wireless mouse designed for versatility and productivity. It features advanced tracking capabilities, quiet clicks, and ultra-fast scrolling, making it ideal for various work environments and on-the-go use. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your MX Anywhere 3S mouse.

Figure 1: Logitech MX Anywhere 3S Compact Wireless Mouse in Pale Grey.
Setup
Initial Charge
Before first use, it is recommended to fully charge your MX Anywhere 3S mouse. Use the included USB-C cable to connect the mouse to a power source (e.g., computer USB port, USB wall adapter).
- A full charge provides up to 70 days of power.
- A 1-minute quick charge can provide up to 3 hours of use.

Figure 2: The MX Anywhere 3S mouse can be charged via its USB-C port, even while in use.
Connectivity
The MX Anywhere 3S mouse connects wirelessly via Bluetooth. It can pair with up to three devices simultaneously.
- Ensure the mouse is powered on. The power switch is located on the bottom of the mouse.
- Press the Easy-Switch button on the bottom of the mouse to select an available channel (1, 2, or 3). The LED indicator for the selected channel will blink rapidly, indicating it's in pairing mode.
- On your device (Windows, macOS, Chrome OS, Linux), open Bluetooth settings and search for "MX Anywhere 3S". Select it to pair.
- Once paired, the LED indicator will glow solid for 5 seconds.
- To switch between paired devices, simply press the Easy-Switch button to select the desired channel.

Figure 3: The MX Anywhere 3S supports connection to up to three devices, allowing seamless switching and file transfer.
Operating the Mouse
MagSpeed Electromagnetic Scrolling
The MX Anywhere 3S features Logitech's MagSpeed scroll wheel, offering two distinct scrolling modes:
- Ratcheted Mode: Provides precise, line-by-line scrolling, ideal for detailed work.
- Hyper-fast Mode: Automatically switches to free-spinning mode when you scroll quickly, allowing you to scroll through 1,000 lines in a second. This mode is perfect for navigating long documents or web pages.
The mode can be toggled by pressing the mode shift button located just below the scroll wheel.

Figure 4: The MagSpeed scroll wheel allows for both precise ratcheted scrolling and ultra-fast free-spinning.
Quiet Clicks
The MX Anywhere 3S is engineered with Quiet Clicks, providing the same satisfying tactile feedback as traditional clicks but with significantly reduced noise. This feature promotes a more focused and less distracting work environment.

Figure 5: Quiet Clicks on the MX Anywhere 3S contribute to a more focused work environment.
Anywhere Tracking (8K DPI)
Equipped with an 8K DPI sensor, the MX Anywhere 3S tracks precisely on virtually any surface, including glass (minimum 4mm thickness). This eliminates the need for a mouse pad and allows for seamless use in diverse locations.

Figure 6: The 8K DPI sensor enables precise tracking on almost any surface, including glass.
Customizable Buttons
The MX Anywhere 3S features customizable buttons that can be configured to perform specific functions or shortcuts using the Logi Options+ software. This allows you to tailor the mouse to your workflow and applications.
- Download Logi Options+ from the official Logitech website.
- Customize button assignments, tracking speed, and app-specific settings.

Figure 7: The MX Anywhere 3S features customizable buttons for enhanced productivity.
Maintenance
Charging
To maintain optimal battery performance, charge your MX Anywhere 3S mouse when the battery indicator light turns red. Use the provided USB-C cable for charging. Avoid using damaged cables or non-standard chargers.
Cleaning
To clean your mouse, gently wipe the surface with a soft, lint-free cloth. For stubborn dirt, slightly dampen the cloth with water. Avoid using harsh chemicals, abrasive cleaners, or submerging the mouse in liquid.
Troubleshooting
Connectivity Issues
- Mouse not connecting: Ensure the mouse is powered on and the correct Easy-Switch channel is selected. Try re-pairing the mouse with your device.
- Intermittent connection: Move the mouse closer to your device. Ensure there are no large metal objects or other wireless devices causing interference.
- Bluetooth not found: Check your device's Bluetooth settings to ensure Bluetooth is enabled and discoverable.
Tracking Problems
- Cursor erratic or not moving: Ensure the optical sensor on the bottom of the mouse is clean and free of debris. Try using the mouse on a different surface.
- Tracking on glass: While the mouse tracks on glass, ensure the glass is at least 4mm thick and clean. Extremely reflective or uneven glass surfaces may affect performance.
Battery Life
- Short battery life: Ensure the mouse is fully charged. Frequent use of hyper-fast scrolling or continuous movement may slightly reduce battery life.
- Mouse not charging: Verify the USB-C cable is securely connected to both the mouse and the power source. Try a different USB port or charging adapter.
Specifications
| Feature | Detail |
|---|---|
| Model | MX Anywhere 3S |
| Dimensions (L x W x H) | 6.3 x 2.17 x 4.57 inches |
| Weight | 8.1 ounces |
| Connectivity | Bluetooth |
| Sensor Technology | Darkfield High Precision Optical |
| DPI Range | 200 to 8000 DPI (adjustable) |
| Battery Type | Rechargeable Li-Po |
| Battery Life | Up to 70 days on a single full charge |
| Operating Systems | Windows, macOS, Linux, Chrome OS, iPadOS |
| Included in Box | MX Anywhere 3S Mouse, USB-C charging cable (1m) |

Figure 8: The MX Anywhere 3S package includes the mouse and a USB-C charging cable.
Warranty and Support
As a renewed product, the Logitech MX Anywhere 3S is covered by the Amazon Renewed Guarantee. This typically includes eligibility for replacement or refund if you are not satisfied with your purchase.
For further product support, software downloads (Logi Options+), and detailed FAQs, please visit the official Logitech support website:





