Introduction
The Logitech Wireless Mouse M505 is designed to enhance productivity and comfort across various environments. Featuring a long battery life and precise laser tracking, this mouse offers reliable performance. Its tiny wireless receiver is designed to remain plugged into your notebook, minimizing the risk of loss or damage.

Image: Logitech Wireless Mouse M505 in Red, shown alongside its compact Unifying receiver.
Setup
1. Battery Installation
The Logitech Wireless Mouse M505 requires one AA battery. To install the battery:
- Locate the battery compartment cover on the underside of the mouse.
- Slide the cover off to open the compartment.
- Insert one AA battery, ensuring the positive (+) and negative (-) terminals align correctly with the indicators inside the compartment.
- Replace the battery compartment cover until it clicks securely into place.
2. Connecting the Unifying Receiver
The mouse connects wirelessly via the Logitech Unifying receiver. This tiny receiver allows you to connect up to six compatible Logitech devices to a single USB port.
- Locate the Unifying receiver, typically stored inside the mouse's battery compartment or packaged separately.
- Plug the Unifying receiver into an available USB port on your computer.
- Turn on the mouse using the On/Off switch on its underside.
- Your computer should automatically detect the mouse. If not, you may need to download the Logitech Unifying Software from the official Logitech website.
Video: A demonstration of setting up the Logitech Unifying receiver and connecting devices. This video explains how to pair new devices to a single receiver, highlighting the ease of setup and the ability to connect up to six compatible peripherals.
Operating the Mouse
Basic Functions
- Left Click: Primary selection and activation.
- Right Click: Accesses contextual menus.
- Scroll Wheel: Scrolls vertically through documents and web pages. The scroll wheel also supports side-to-side scrolling by tilting it left or right, which can be configured via Logitech software.
- Laser Tracking: Provides smooth, responsive, and precise cursor control on various surfaces, including polished or wood-grain tables.
Advanced Features with Unifying Software
For enhanced functionality, download and install the Logitech Unifying Software from the official Logitech website. This software allows you to:
- Pair additional compatible Logitech devices (up to six) to your single Unifying receiver.
- Customize button functions and scroll wheel behavior.
- Check battery status.
Video: An overview of the Logitech Unifying Receiver. This video details the compact size of the receiver and its ability to connect multiple Logitech wireless devices, such as keyboards and mice, to a single USB port, simplifying your workspace.
Maintenance
Battery Life and Replacement
The Logitech Wireless Mouse M505 boasts an extended battery life of up to 15 months, depending on usage. When the battery is low, the LED indicator on the mouse will flash red. Replace the AA battery as described in the "Setup" section.
Cleaning
To maintain optimal performance, periodically clean your mouse:
- Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution to wipe the exterior.
- Avoid using harsh chemicals or abrasive materials.
- Ensure no liquid enters the battery compartment or optical sensor.
Troubleshooting
Connectivity Issues
- Check Battery: Ensure the battery is correctly installed and has sufficient charge. Replace if necessary.
- Receiver Connection: Make sure the Unifying receiver is securely plugged into a working USB port. Try a different USB port.
- Power Cycle: Turn the mouse off and then on again.
- Interference: Move the mouse closer to the receiver. Avoid placing the receiver near other electrical devices that might cause interference (e.g., cordless phones, Wi-Fi routers).
- Re-pair Device: If the issue persists, use the Logitech Unifying Software to re-pair the mouse with the receiver.
Cursor Movement Issues
- Surface: Ensure you are using the mouse on a suitable surface. Highly reflective or transparent surfaces may affect laser tracking.
- Optical Sensor: Check the optical sensor on the underside of the mouse for any obstructions or debris. Clean gently if needed.
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 8.25 x 5.7 x 3.54 inches |
| Item Weight | 9.6 ounces |
| Item Model Number | 910-001326 |
| Batteries | 1 AA batteries required. |
| Connectivity Technology | Wireless (2.4 GHz) |
| Movement Detection Technology | Laser |
| Special Feature | Wireless, Unifying Receiver |
Warranty and Support
For detailed warranty information and technical support, please visit the official Logitech support website. You can find drivers, software, and frequently asked questions related to your Logitech Wireless Mouse M505.
Logitech Unifying Software is available at: www.logitech.com/unifying





