1. Introduction
The Logitech M720 Triathlon Mouse is designed for efficiency and comfort, allowing you to seamlessly switch between up to three devices. With its dual connectivity options (Logitech Unifying™ receiver or Bluetooth® Smart), hyper-fast scrolling, and customizable buttons, the M720 is an ideal tool for multi-tasking across various operating systems.
Video Description: An overview of the Logitech M720 Triathlon mouse, demonstrating its multi-device switching capabilities and key features.
2. Product Features
The M720 Triathlon mouse is equipped with several features to enhance your productivity:
- Easy-Switch (1): Seamlessly switch between up to 3 connected devices.
- Forward Button (2): Navigate forward in web browsers or applications.
- Back Button (3): Navigate backward in web browsers or applications.
- Toggle & Connect Button (4): Used for pairing and switching between devices.
- Hyper-Fast Scroll-Wheel (5): Scroll through long documents or web pages at high speed, or switch to click-to-click precision scrolling.
- Battery LED (6): Indicates battery status.
- Thumb Button (7): Customizable button for various functions.
- Dual Connectivity (8): Connect via Logitech Unifying™ receiver or Bluetooth® Smart.
- Battery & Receiver Storage (9): Convenient storage compartment for the AA battery and Unifying receiver.

Image Description: An infographic highlighting the major functions of the M720 mouse: OS/Multi Device Easy Switching, Bluetooth and Unifying Dual connection, 10-meter wireless connection, 24 months battery life, Comfortable touch design, and 8 custom buttons.

Image Description: A visual representation of the M720's OS/Multi Device Easy Switching feature, showing the mouse connected to three different computers (labeled 1, 2, 3) via a button on the side.
3. Setup Guide
3.1 Initial Setup
- Remove Pull Tab: Locate and remove the battery pull tab from the mouse to activate the pre-installed AA battery.
- Select Channel: Press the toggle button (labeled 1, 2, 3) on the side of the mouse to select an available channel. The corresponding LED will blink slowly.
- Long Press to Pair: Press and hold the selected channel's toggle button for 3 seconds until the LED starts blinking rapidly. This indicates the mouse is in pairing mode.

Image Description: A diagram illustrating the initial setup steps: 1. Remove the battery pull tab. 2. Select a channel (1, 2, or 3). 3. Long press the channel button for 3 seconds to enter pairing mode.
3.2 Connecting with Logitech Unifying™ Receiver
Requirements:
- Available USB port
- Logitech Unifying Software (Windows 7, 8, 10 or later; Mac OS X 10.10 or later; Chrome OS)
Steps:
- Download the Logitech Unifying Software from support.logitech.com/software/unifying.
- Ensure your M720 mouse is powered on and the Unifying receiver is plugged into your computer's USB port.
- Press and hold the toggle button below the display for 3 seconds (the LED on the selected channel will start to blink fast).
- Open the Logitech Unifying Software and follow the on-screen instructions to complete the pairing.
Re-pairing with Unifying: If you need to pair with a second receiver or pair the mouse to another channel on the same receiver, you will need to use the Logitech Unifying Software.
3.3 Connecting with Bluetooth® Smart
Requirements:
- Your device must support Bluetooth Smart (Windows 8 or later; Mac OS X 10.10 or later; Android 5.0 or later)
Steps:
- Ensure your M720 mouse is powered on.
- Press and hold the toggle button below the display for 3 seconds (the LED on the selected channel will start to blink fast).
- Open the Bluetooth settings or Bluetooth device manager on your computer or mobile device.
- Select "M720 Triathlon Mouse" from the list of available devices to pair.

Image Description: The M720 mouse shown with a laptop and a desktop computer, illustrating its dual wireless connection capability via Bluetooth and the Unifying receiver.
3.4 Logitech Options Software
To unlock the full potential of your M720 mouse, install the Logitech Options software. This software allows you to customize buttons, assign gestures, and optimize the mouse for your operating system. You can download it from logitech.com/downloads.
4. Operating Instructions
4.1 Switching Between Devices
Use the Easy-Switch button (labeled 1, 2, 3) on the side of the mouse to instantly switch control between up to three paired devices. Simply press the button corresponding to the device you wish to control.
4.2 Hyper-Fast Scrolling
The M720 features a dual-mode scroll wheel. Press the button located just below the scroll wheel to toggle between two modes:
- Hyper-fast scrolling: For quickly navigating through long documents and web pages.
- Click-to-click scrolling: For precise navigation.
4.3 Customizable Buttons
The forward, back, and thumb buttons can be customized using the Logitech Options software to perform various functions, such as media control, application switching, or custom keystrokes.
5. Maintenance
5.1 Battery Replacement
The M720 mouse uses one AA battery, which provides up to 24 months of battery life. When the battery LED (6) indicates low power, replace the battery:
- Turn off the mouse.
- Open the battery compartment cover on the underside of the mouse.
- Remove the old AA battery and insert a new one, ensuring correct polarity (+/-).
- Close the battery compartment cover.
5.2 Cleaning
To clean your mouse, use a soft, lint-free cloth lightly dampened with water or an electronics-safe cleaning solution. Avoid using harsh chemicals or abrasive materials.
6. Troubleshooting
6.1 Mouse Not Responding
- Check Battery: Ensure the battery is correctly installed and has sufficient charge. Replace if necessary.
- Power On: Make sure the mouse is switched on.
- Re-pair: Try re-pairing the mouse with your device using either the Unifying receiver or Bluetooth Smart connection methods described in Section 3.
- USB Port: If using the Unifying receiver, try plugging it into a different USB port on your computer.
- Bluetooth Device: If using Bluetooth, try connecting to a different Bluetooth-enabled device to rule out issues with the original device.
6.2 Lag or Intermittent Connection
- Distance: Ensure the mouse is within the 10-meter (33 ft) wireless range of your device.
- Interference: Move the mouse and receiver away from other electrical devices that might cause interference (e.g., cordless phones, Wi-Fi routers).
- Surface: Ensure you are using the mouse on a suitable surface.
6.3 Buttons Not Working as Expected
- Logitech Options: Check the settings in the Logitech Options software to ensure buttons are configured as desired.
- Re-install Software: Try uninstalling and reinstalling the Logitech Options software.
7. Specifications
| Brand | Logitech |
| Model | M720 Triathlon |
| Type | Bluetooth Wireless |
| DPI | 1000 |
| Number of Buttons | 8 |
| Number of Rollers | 1 |
| Hand Orientation | Right |
| Power Type | Battery (1 x AA) |
| Battery Life | Up to 24 months |
| Interface Type | Bluetooth, Unifying USB Receiver |
| Wireless Range | 10 meters (33 ft) |
| Mouse Dimensions (H x W x D) | 115 mm x 74 mm x 45 mm |
| Mouse Weight | 135 g |
| Receiver Dimensions (H x W x D) | 14.4 mm x 18.7 mm x 6.1 mm |
| Receiver Weight | 18 g |
| Origin | Mainland China |

Image Description: A diagram showing the dimensions of the Logitech M720 mouse (115mm High, 74mm Wide, 45mm Deep, 135g Heavy) and its Unifying receiver (14.4mm High, 18.7mm Wide, 6.1mm Deep, 18g Heavy).
8. User Tips
- Leverage Customization: Install Logitech Options+ software to fully customize the 8 buttons for specific tasks, which is particularly useful for productivity and video editing.
- Efficient Multi-Tasking: Make full use of the Easy-Switch feature to quickly toggle between up to three devices (e.g., desktop, laptop, tablet) for seamless workflow.
- High-Speed Scrolling: Utilize the hyper-fast scroll wheel for rapid navigation through long documents and web pages, switching to click-to-click mode for precision when needed.
- Comfort for Long Use: The ergonomic design of the M720 provides comfort, making it suitable for extended periods of use without fatigue.
9. Warranty and Support
For warranty information, technical support, and additional resources, please visit the official Logitech support website. You can find detailed product information, FAQs, and driver downloads at support.logi.com.
The setup guide in PDF format can be referenced for visual instructions: Logitech M720 Setup Guide (PDF).