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# Logitech MX Master 3S Mouse setup guide


## How to Setup

### 1. Unpacking and Setup

* Carefully remove the Logitech MX Mouse and USB-C charging cable from the packaging.    
* Place the mouse on a flat surface and slide the power switch to the green ON position.
![](https://storage.crisp.chat/users/helpdesk/website/-/8/0/7/e/807e2a8d46912800/image_mwmt74.png =958xauto)


**Connect with Bluetooth:**
* Short press the Easy Switch Button (Circular button at the bottom) to select one of three slots devices (1, 2, or 3).
* Press and hold the Easy Switch Button for about 3 seconds until the light for selected slot will start blinking.
* On your Mac or PC, open Bluetooth Settings.   
* Select “MX Master 3S” from the list of available devices and follow the steps to pair.

[Bluetooth video tutorial](https://youtube.com/shorts/E-rOUmiD3WI?si=Cj_OmHlAA9HxSulW)

![](https://storage.crisp.chat/users/helpdesk/website/-/8/0/7/e/807e2a8d46912800/image_54vdzo.png)

**Add ons:**
* Once connected, you can try to move the mouse and using [mouse test](https://cpstest.org/mouse-test/) to further test the mouse
* You can switch between connected devices at any time by tapping the 1, 2, or 3 device buttons on the bottom of the mouse.    
* Optional: Install the free Logi Options+ app to customize the keyboard and manage device connections.


## How to Return

### 1. Unpair Devices

* Remove or forget the MX Master 3S Mouse from your Mac or PC’s Bluetooth settings.    

### 2. Clean the Keyboard

* Use a soft, dry cloth to wipe down the mouse.    
* Do not use any cleaning agents directly on the mouse.

### 3. Repack the Device

* Repack the mouse and USB-C cable into the original packaging.    
* All accessories must be returned to avoid additional fees.