Logitech - Signature Comfort M840 L Wireless Bluetooth Mouse with Silent Clicks and Customizable Buttons - Wireless - Black
Customers are saying
Customers consistently note that this product offers excellent ergonomics. Users find the design to be very comfortable to hold during use.
Color
BlackComfy grip, every click
Contoured mouse shaped for right-handed use and adapted for most hand sizes, this comfortable mouse with cozy side grips make your workday more comfortable
Scroll faster, stay focused
Scroll line by line or fly through pages with SmartWheel; quiet clicks reduce noise in shared or home offices
Make it yours
Customizable buttons via Logi Options+ adapt to your tasks and help you do more; in the app you can boost productivity across apps, adjust DPI levels and personalize your workflow.
Simple connections
Connect this multi-device mouse with Bluetooth pairing, then swap up to 3 devices instantly with Easy-Switch—just a tap, no dongle needed; perfect for multitasking
Power that just keeps going
Logitech Signature Comfort M840 L wireless Bluetooth mouse stays powered up for up to 24 months—no constant battery changes
Power that just keeps going
Logitech Signature Comfort M850 L wireless Bluetooth mouse stays powered up for up to 24 months—no constant battery changes
Works on nearly any platform
Compatible with Windows, macOS, Chrome OS, Linux, ipadOS and Android; one mouse for all your devices and desk setups
Designed for sustainability
The plastic parts of Signature Comfort Plus M850 L are made with a minimum of 49% post-consumer recycled plastic
- Lighting TypeNoneMaximum Sensitivity4000 dots per inchNumber of Buttons (Total)6Connection TypeWireless
Reviews
Rating 5 out of 5 stars with 6 reviews
- Ergonomics (4)
Customer Images
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Compare similar products
Meet Signature Comfort M840 L, a mouse designed for right hands with comfortable side grips, quiet clicks, SmartWheel scrolling, and effortless Bluetooth pairing across your devices. Connect wirelessly with Windows, macOS, Chrome OS, Linux, iPadOS, and Android, plus enjoy up to 24 months of battery life.
Upgrade to smarter scrolling, better comfort, and more productivity with the Signature M550 – featuring SmartWheel scrolling that delivers precision and speed in an instant. A choice of sizes for smaller or larger hands means there's a perfect fit for anyone. Seamless wireless connectivity, silent clicks, and a comfort shape keep you comfortable and productive hour after hour.
Ready, set go! Move between screens and straight through your to-do list with Logitech M720 Triathlon, the athletic mouse built for endurance, versatility, and comfort. With EASY-SWITCH technology you can pair your mouse with up to 3 computers and seamlessly switch between them with a click of a button. Reliable hyper-fast scrolling lets you fly through documents and web pages or switch to click-to-click scrolling when you need precision. A true athlete, this portable mouse is designed to endure, with buttons built to withstand up to 10 million clicks. Focus on what really matters thanks to the extended battery life of up to 24 months of power on a single AA battery. Simply connect M720 Triathlon wirelessly via the included Logitech Unifying receiver or via Bluetooth smart technology. Download Logitech Options Software to unlock the full range of personalization for your Logitech mouse.
The advanced mobile mouse for power users. Harness the power of Logitech Flow and seamlessly move content between three devices. Scroll through documents and web pages faster and easier with the hyper-fast scroll wheel. Powers up for an entire day in just three minutes. A compact, sculpted shape crafted to fit your hand and provide the control you need anywhere.
| Pros for Logitech - Signature Comfort M840 L Wireless Bluetooth Mouse with Silent Clicks and Customizable Buttons - Wireless - Black | |||
|---|---|---|---|
| Ergonomics | Overall Performance, Ergonomics, Connectivity, Size, Ease of Use | Overall Performance, Ergonomics, Size, Ease of use, Bluetooth | Overall Performance, Connectivity, Battery Life, Design, Portability |
| Cons for Logitech - Signature Comfort M840 L Wireless Bluetooth Mouse with Silent Clicks and Customizable Buttons - Wireless - Black | |||
| There were no cons for this product— | Scroll Wheel | Weight | Click Sound |
Specs
Customers often buy these together
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