Detailed Specifications
The Logitech Signature Comfort M840 L is a full-size wireless mouse designed for comfortable everyday computing and productivity. Its contoured shape and side grips provide a natural fit for right-handed users, while quiet clicking and SmartWheel scrolling support focused work. Bluetooth connectivity and Easy-Switch make it easy to switch between multiple compatible devices.
Key Features
- Comfortable Ergonomic Design: Features a sculpted shape and comfortable side grips designed for right-handed users.
- Quiet Clicking: Reduced click noise helps create a quieter working environment.
- SmartWheel Scrolling: Switch between precise line-by-line scrolling and faster navigation through long documents.
- Multi-Device Connectivity: Bluetooth and Easy-Switch support pairing with and switching between up to three compatible devices.
- Customizable Controls: Personalize supported buttons and mouse settings using Logi Options+ on compatible systems.
Technical Specifications
| Brand | Logitech |
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| Part Number / MPN | 910-007714 |
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| Product Type | Wireless Mouse |
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| Product Family | Signature Comfort |
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| Model | M840 L |
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| Color | Black |
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| Connectivity | Bluetooth Low Energy |
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| Bluetooth Version | Bluetooth 5.2 LE |
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| Wireless Range | Up to 10 m, depending on the environment |
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| Sensor Technology | Optical tracking |
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| Adjustable Resolution | 400–4000 DPI |
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| Number of Buttons | 6, including scroll-wheel and navigation controls |
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| Scrolling Technology | SmartWheel |
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| Clicking | Quiet clicking |
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| Multi-Device Support | Up to 3 devices |
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| Button Customization | Supported through Logi Options+ on compatible systems |
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| Hand Orientation | Right-handed |
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| Battery Type | 1 × AA |
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| Maximum Battery Life | Up to 24 months, depending on usage |
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| Dimensions | 121.8 × 74.3 × 43.2 mm approximately |
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| Weight | Approximately 104.6 g |
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| Compatible Platforms | Windows, macOS, ChromeOS, Linux, iPadOS, and Android, subject to version requirements |
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| Recycled Plastic Content | At least 50%, according to listed product specifications |
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| Warranty | Limited 1-year warranty, subject to regional terms |
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| UPC | 097855210036 |
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Frequently Asked Questions
1. What is the Logitech Signature Comfort M840 L?
It is a full-size wireless mouse designed for right-handed users, everyday productivity, and comfortable computer navigation.
2. How many devices can it connect to?
It can pair with up to three compatible devices and switch between them using Easy-Switch.
3. Does this mouse support quiet clicking?
Yes. Its quiet-click design helps reduce clicking noise during everyday use.
4. Can I customize the buttons?
Yes. Supported button functions and settings can be customized through Logi Options+ on compatible systems.
5. Which battery does it use?
The mouse uses one AA battery and offers up to 24 months of battery life under specified usage conditions.
DC Supplies Product Note
Check Bluetooth compatibility and operating-system requirements before purchase. Battery life varies with usage and computing conditions. Confirm the package contents for the specific regional SKU.
