Logitech 910-007713 Signature Comfort M840 L Wireless Mouse - Off White - 4000 DPI Optical - Bluetooth/RF - USB - 6 Buttons - PC/Mac
Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Technical Overview
The Signature Comfort M840 L uses Logitech’s advanced 2.4 GHz wireless technology with Bluetooth for reliable, low-latency connectivity. The optical sensor resolution ranges up to 4000 DPI, adjustable via dedicated buttons for precise cursor control on high-resolution displays. Six buttons include left/right, clickable scroll wheel, DPI switcher, and forward/back buttons, all programmable through Logitech Options software.
Battery life is extended via an included AA battery, with on/off switch and battery indicator. The USB receiver stores inside the mouse for portability. The mouse features a 1-year limited warranty and supports multiple operating systems.
This section brings together practical product details such as Pointing Device Connectivity Technology, Pointing Device Wireless Technology, Wireless Operating Frequency, Pointing Device Host Interface, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Key Product Advantages
The M840 L combines dual-mode wireless, silent operation, and customizable controls to boost productivity across devices. Its DPI adjustment lets you tailor sensitivity for detailed work or fast navigation, while the fast-scrolling wheel saves time on long documents and web pages.
Designed with sustainability in mind, the mouse uses 50% post-consumer recycled plastic. The quiet clicks and ergonomic contour reduce fatigue during extended sessions, making it a practical choice for office or home.
Easy-Switch Multi-Device
Pair up to three devices via Bluetooth or the included USB receiver, then switch with a button press. Works with PC, Mac, ChromeOS, Linux, iPadOS, and Android.
Quiet, Comfortable Design
Silent click technology reduces noise by 90% compared to standard mice. The contoured shape and rubber side grip provide comfort for right-handed users.
Deployment / Use Cases
The Signature Comfort M840 L is ideal for professionals who work across multiple computers or operating systems. Its Bluetooth and RF flexibility allows quick switching between a desktop PC, laptop, tablet, or even a smart TV. The adjustable DPI supports both high-precision tasks like graphic design and fast cursor movement for general use.
In shared or quiet workspaces, the silent clicks and scroll wheel reduce noise distraction. The long battery life (up to 24 months) minimizes downtime. The compact size and integrated receiver storage make it travel-friendly for mobile workers.
Multi-Device Office Workflow
Connect to a Windows 11 desktop via USB receiver and a MacBook via Bluetooth. Switch between them without cables or pairing delays.
Quiet Home Office
Silent clicks and a smooth scroll wheel keep your focus intact during calls or late-night work. The ergonomic grip reduces strain over long hours.
Physical Profile
The M840 L measures 121.3 x 74.3 x 44.2 mm (4.78 x 2.93 x 1.74 inches) and weighs 102.9 g (3.63 oz), making it a medium-large mouse suitable for right-handed palm or claw grips. The off-white color with recycled plastic finish blends into professional or casual setups.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 4.78" (121.30 mm), 2.93" (74.30 mm), 1.74" (44.20 mm), 3.63 oz (102.90 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 2.93" (74.30 mm)
- Depth
- 1.74" (44.20 mm)
- Height
- 4.78" (121.30 mm)
- Weight
- 3.63 oz (102.90 g)
What's in the Box
The package includes the Signature Comfort M840 L Mouse, one AA battery (pre-installed), and user documentation.
Package contents include Signature Comfort M840 L Mouse, 1 x AA Battery User Documentation. These included items support setup, installation, and immediate deployment without needing to source the core bundled accessories separately.
Highlights
- Dual wireless connectivity: Bluetooth and 2.4 GHz RF with Easy-Switch for up to three devices
- Optical sensor with adjustable DPI up to 4000 for precise tracking
- Six customizable buttons including fast-scrolling wheel and quiet clicks
- Ergonomic right-handed design with contoured grip and rubber side texture
- Built from 50% post-consumer recycled plastic
- Compatible with Windows, macOS, ChromeOS, Linux, iPadOS, and Android
- Long battery life: up to 24 months on one AA battery (included)
- Compact storage: USB receiver fits inside the mouse for portability
Specifications
| Specifications | |
|---|---|
| Manufacturer | Logitech |
| Manufacturer Part Number | 910-007713 |
| Brand Name | Logitech |
| Product Line | Signature Comfort |
| Product Model | M840 L |
| Product Name | Signature Comfort M840 L Mouse |
| Product Type | Mouse |
| Pointing Device | |
| Pointing Device Connectivity Technology | Wireless |
| Pointing Device Wireless Technology | Bluetooth/Radio Frequency |
| Wireless Operating Frequency | 2.40 GHz |
| Movement Detection | Optical |
| Movement Resolution (dpi) | 4000 |
| Total Number of Buttons | 6 |
| Scroller Type | Scroll Wheel |
| Pointing Device Features | Silent,Customizable Keys,Comfort Grip,Contour,Side Grip,Fast Scrolling,Quiet Clicks,Adjustable DPI,Easy-Switch |
| Ergonomic Fit | Right-handed |
| Interfaces/Ports | |
| Pointing Device Host Interface | USB |
| Battery Information | |
| Number of Batteries Supported | 1 |
| Battery Size Supported | AA |
| Battery Included | Yes |
| Physical Characteristics | |
| Color Family | White |
| Product Color | Off White |
| Product Material | Recycled Plastic |
| Height | 4.78" (121.30 mm) |
| Width | 2.93" (74.30 mm) |
| Depth | 1.74" (44.20 mm) |
| Weight (Approximate) | 3.63 oz (102.90 g) |
| Miscellaneous | |
| Package Contents | Signature Comfort M840 L Mouse 1 x AA Battery User Documentation |
| Operating System Compatibility | ChromeOS,Linux,Windows 10,Windows 11,Mac OS X 12.0 Monterey,iPadOS 15,Android 12 |
| Platform Supported | PC,Mac |
| Post-consumer-waste% | 50% |
| Warranty | |
| Limited Warranty | 1 Year |
FAQ
What connectivity options does the Logitech Signature Comfort M840 L offer?
The M840 L supports both Bluetooth and Logitech's 2.4 GHz radio frequency wireless technology, allowing you to connect via the included USB receiver or directly via Bluetooth. With Easy-Switch, you can pair up to three devices and switch between them with a button press.
Can I adjust the DPI on the M840 L mouse?
Yes, the mouse features adjustable DPI up to 4000. You can cycle through preset DPI levels using the dedicated DPI button, allowing you to switch between precise cursor control and faster movement depending on your task.
Is the mouse compatible with Mac and Linux?
Yes, the mouse works with macOS Monterey (12.0) and later, as well as Linux. It is also compatible with Windows 10/11, ChromeOS, iPadOS 15+, and Android 12+.
How many buttons does the Signature Comfort M840 L have, and can they be customized?
The mouse has six buttons: left, right, clickable scroll wheel, DPI switch, and forward/back buttons. Using Logitech Options software (Windows/macOS), you can assign custom functions to each button, such as media controls, shortcuts, or gestures.
What materials are used in the M840 L, and is it environmentally friendly?
The mouse body is made from recycled plastic containing 50% post-consumer waste, reflecting Logitech's commitment to sustainability. The off-white color is consistent throughout the material.
Does the mouse come with a battery, and how long does it last?
Yes, one AA battery is included and pre-installed. Battery life is rated up to 24 months with typical usage. An on/off switch and battery indicator help conserve power.
What resolution or display format is specified?
It features a display specification of 4000, giving you clear visuals for work and media use.
What refresh rate or brightness details are available?
Display-oriented products are best judged through screen, connectivity, and installation specifications. Those facts help buyers confirm visual fit, mounting flexibility, and deployment suitability more clearly than generic summary text.
| Qty | Price | Available |
|---|
