Stay productive throughout the day with the Logitech Signature Comfort M840 L Wireless Mouse at your side. With contoured side grips, this wireless Bluetooth LE mouse is designed to fit naturally into the hand, allowing right-handed users to work comfortably throughout the day.
The 4000 dpi optical sensor delivers high precision and may be adjusted to fit your needs. Quiet click buttons allow you to work without distraction. Switch between three paired devices, including laptops and tablets, for enhanced multitasking. Additionally, the Signature Comfort M840 L can operate for up to two years with the included AA battery.
Comfy Control
The sculpted shape is designed to fit naturally in your hand. The thumb rest and extended rubber side grip give you enhanced control.
Effortless Scrolling and Quiet Clicks
Scroll line by line or fly through pages with the SmartWheel scroll wheel. Quiet clicks help to provide a calm, focused workflow.
Make It Yours
Use the free-to-download Logi Options+ app to streamline your workflow by customizing the six buttons and dpi sensitivity.
Easy Switching and Bluetooth Pairing
Connect with Bluetooth, then swap between up to three devices with the Easy-Switch.
Extensive Compatibility
Bluetooth connectivity allows you to use the mouse with almost any Windows, macOS, ChromeOS, Linux, iPadOS, or Android device.
Long Range
A 33' range allows you to use the mouse for presentations.
Sustainable Design
The plastic parts of Signature Comfort M840 L are made with a minimum of 65% post-consumer recycled plastic.