1. Introduction
The Logitech Wireless Mouse M505 is designed for enhanced productivity and comfort. Featuring advanced laser tracking and a long battery life, it provides precise cursor control and reliable wireless connectivity. The included Logitech Unifying receiver offers convenience by allowing connection of multiple compatible devices to a single, tiny USB receiver.

Figure 1: Logitech Wireless Mouse M505
Key Features:
- Extended Battery Life: Up to 15 months of battery life, reducing the need for frequent battery changes.
- Laser Tracking: Provides smooth, responsive, and precise cursor control on various surfaces, including polished or wood-grain tables.
- Logitech Unifying Receiver: A tiny wireless receiver that stays in your notebook, allowing connection of up to six compatible Logitech devices.
- Ergonomic Design: Comfortable shape with a soft rubber grip that conforms naturally to your hand.
- Advanced 2.4 GHz Wireless Connectivity: Offers reliable, cord-like performance with fast data transmission and minimal delays.
Package Contents:
- Logitech Wireless Mouse M505
- Logitech Unifying receiver
- 2 AA batteries (pre-installed)
- User documentation
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).
2. Setup
2.1. Installing Batteries
The Logitech Wireless Mouse M505 comes with two AA batteries pre-installed. If you need to replace them:
- Locate the battery compartment cover on the underside of the mouse.
- Slide the cover open.
- Insert two AA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
An On/Off switch is located on the underside of the mouse to conserve power when not in use. A battery-indicator light on the top of the mouse will alert you when battery levels are low.
2.2. Connecting the Logitech Unifying Receiver
The Logitech Unifying receiver provides the wireless connection between your mouse and computer.
- Locate the tiny Logitech Unifying receiver. It may be stored inside the mouse's battery compartment for transport.
- Plug the Unifying receiver into an available USB port on your computer.

Figure 2: Logitech Unifying Receiver (shown next to a coin for scale)

Figure 3: Unifying Receiver plugged into a laptop
Your computer should automatically detect the mouse. For enhanced features or to connect additional compatible devices, you may download the Logitech Unifying software from www.logitech.com.
3. Operating the Mouse
3.1. Basic Functions
- Left-Click Button: Used for selecting items, opening files, and activating functions.
- Right-Click Button: Used for opening context menus and accessing additional options.
- Scroll Wheel: Scroll up or down through documents and web pages. The scroll wheel also functions as a middle-click button.
3.2. Laser Tracking
The M505 mouse utilizes laser tracking technology for precise and smooth cursor movement. This technology allows the mouse to perform reliably on a wider range of surfaces compared to standard optical mice.
3.3. Advanced 2.4 GHz Wireless Connectivity
The mouse connects to your computer using Logitech's advanced 2.4 GHz wireless technology, which provides a strong, reliable connection with virtually no delays or dropouts, similar to a wired connection.
3.4. Logitech Unifying Technology
The Unifying receiver allows you to connect up to six compatible Logitech wireless devices (such as keyboards or number pads) to your computer using a single receiver. This frees up USB ports and simplifies your workspace. To add more devices, download and use the Logitech Unifying software from the official Logitech website.
4. Maintenance
4.1. Battery Replacement
The M505 mouse is designed for long battery life (up to 15 months). When the battery indicator light on the mouse turns red or begins to flash, it's time to replace the batteries. Refer to Section 2.1 for battery installation instructions.
4.2. Cleaning the Mouse
To maintain optimal performance and appearance, clean your mouse periodically:
- Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution.
- Avoid using abrasive cleaners, solvents, or aerosol sprays directly on the mouse.
- Do not allow moisture to enter any openings.
4.3. Storing the Unifying Receiver
When traveling or not using the mouse, the tiny Unifying receiver can be conveniently stored inside the mouse's battery compartment to prevent loss.
5. Troubleshooting
Common Issues and Solutions:
| Problem | Solution |
|---|---|
| Mouse is not responding. |
|
| Cursor movement is erratic or jumpy. |
|
| Cannot connect additional devices to the Unifying receiver. |
|
6. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 8.25 x 5.7 x 3.54 inches |
| Item Weight | 7.2 ounces |
| Model Number | 910-001321 |
| Batteries | 2 AA batteries (included) |
| Connectivity Technology | USB, Wireless (Advanced 2.4 GHz) |
| Movement Detection Technology | Laser |
| Color | Black |
| Manufacturer | Logitech, Inc |
| Date First Available | January 30, 2010 |
7. Warranty and Support
7.1. Limited Hardware Warranty
The Logitech Wireless Mouse M505 comes with a 3-year limited hardware warranty. This warranty covers defects in materials and workmanship under normal use. For full terms and conditions, please refer to the warranty documentation included with your product or visit the Logitech website.
7.2. Customer Support
For technical support, frequently asked questions, or to download the latest software and drivers, please visit the official Logitech support website:
You can also find additional information and resources at www.logitech.com.





