1. Introduction and Overview
The Logitech Performance MX Wireless Mouse is designed to provide precise and comfortable navigation across various surfaces. It features Logitech's exclusive Darkfield Laser Tracking technology, allowing it to track on surfaces where standard mice may fail, including glass. The included Logitech Unifying receiver offers a convenient wireless connection, capable of linking up to six compatible Logitech devices simultaneously.

Figure 1: Logitech Performance MX Wireless Mouse and Unifying Receiver.
2. Key Features
- Darkfield Laser Tracking: Enables precise cursor control on virtually any surface, including glass.
- Logitech Unifying Receiver: A tiny, plug-and-forget wireless receiver that connects up to six compatible Logitech devices.
- USB Recharging System: Recharge your mouse conveniently via a Micro-USB cable, even while in use, eliminating the need for disposable batteries.
- Hyper-Fast Scroll Wheel: Allows for rapid scrolling through long documents and web pages, with an option to switch to click-by-click mode for precision.
- Sculpted Ergonomic Design: Contoured shape cradles your hand for enhanced comfort during extended use.
- Customizable Buttons: Fingertip controls for various functions like quick-zoom and web navigation.
3. Setup Instructions
3.1 Connecting the Unifying Receiver
- Locate the Logitech Unifying receiver in the mouse packaging.
- Plug the Unifying receiver into an available USB port on your computer.
- Turn on the mouse using the On/Off switch located on the bottom of the mouse.
- Your computer should automatically detect and connect to the mouse.
Video 1: Demonstrating the Logitech Unifying Receiver connection process.
3.2 Installing Logitech Options Software (Optional)
For advanced customization of buttons and settings, download and install the Logitech Options software from the official Logitech website. This software allows you to personalize your mouse experience.
4. Operating Instructions
4.1 Darkfield Laser Tracking
The Darkfield Laser Tracking technology allows the Performance MX mouse to track on a wider variety of surfaces, including clear glass (minimum 4mm thick) and high-gloss surfaces, unlike traditional optical or laser mice. This provides consistent and precise cursor control wherever you work.
Video 2: Explanation of Logitech Darkfield Laser Tracking technology.
4.2 Hyper-Fast Scrolling
The scroll wheel offers two modes:
- Hyper-Fast Mode: Spin the almost frictionless scroll wheel to fly through long documents and web pages.
- Click-by-Click Mode: Press the button directly below the scroll wheel to switch to a precise, line-by-line scrolling experience, ideal for lists, slides, and photos.
4.3 Customizable Buttons
The mouse features several programmable buttons, including convenient thumb buttons. These can be customized using the Logitech Options software to perform various tasks such as navigating web histories, quick-zoom, or other application-specific functions.

Figure 2: Side view of the mouse highlighting the thumb buttons.

Figure 3: Top view of the mouse showing the scroll wheel and mode switch button.
4.4 Multi-Device Switching
The Logitech Unifying receiver allows you to connect up to six compatible devices. If you have multiple Unifying-compatible devices, you can switch between them seamlessly without needing to plug and unplug receivers.
5. Charging and Battery
The Logitech Performance MX mouse is equipped with a rechargeable Lithium Polymer battery. To charge the mouse:
- Connect the Micro-USB charging cable to the port on the front of the mouse.
- Plug the other end of the USB cable into an available USB port on your computer.
- The mouse can be used while it is charging.
- A battery indicator light will inform you when a recharge is needed.

Figure 4: Front view of the mouse with the Micro-USB charging port.
6. Specifications
- Product Dimensions: 5.1 x 3.9 x 1.9 inches
- Item Weight: 5.2 ounces
- Item Model Number: 910-001105
- Batteries: 1 Lithium Polymer battery required (included)
- Brand: Logitech
- Color: Black
- Connectivity Technology: USB, Wireless
- Movement Detection Technology: Laser, Optical (Darkfield Laser Tracking)
- Date First Available: August 19, 2009
7. System Requirements
Windows-based PC:
- Windows XP, Windows Vista, or Windows 7
- USB port
- Internet connection (for software download)
Mac computer:
- Mac OS X 10.4 or later
- USB port
- Internet connection (for software download)
8. Package Contents
- Logitech Performance Mouse MX
- Logitech Unifying receiver
- Micro-USB charging cable
- User documentation
9. Important Information
Legal Disclaimer: This product is in great shape, with only minor cosmetic wear such as some rubbing off of the Logitech letter on the back of the mouse and very minor scratches. It functions perfectly.
10. Support
For further assistance, troubleshooting, or warranty information, please visit the official Logitech support website or refer to the user documentation included in your package.





