Logitech · Mice & Trackballs
Signature Comfort M840 L
SKU: 910-007712
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Discover the Logitech Signature Comfort M840 L wireless mouse with ergonomic design, palm support, and smooth scrolling for lasting comfort and precision.
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Specifications
Sensor & Tracking
- Sensor Technology
- Pluto ONE
- Nominal value
- 1000 DPI
- DPI (Minimal and maximal value)
- 400-4000 DPI (can be set in increments of 100 DPI)
- Tracking technology
- Logitech Advanced Optical
Buttons
- Number of Buttons
- 6 (Left/Right-click, Scroll-wheel middle click, side buttons, DPI button)
- Gesture button
- No
- Number of programmable buttons
- 4 (Scroll-wheel middle click, side buttons, DPI button)
Scrolling
- Scroll Wheel
- SmartWheel
- Horizontal scroll
- Virtual
- Thumb wheel
- No
Features
- Customization app
- Logi Options+, Logi Tune
Battery
- Battery type
- 1 AA battery (Alkaline Battery)
- Battery life
- 24 months
- Battery life with Logi Bolt USB Receiver
- up to 24-months
- Battery life with Bluetooth®
- up to 24-months
Connectivity
- Connection Type
- Bluetooth Low Energy Technology
- Wireless range
- 33-ft (10 m)
- Unifying-ready mouse
- No
- Unifying-ready receiver
- No
- Multi-device pairing
- Up to 5 devices
System Requirements
- Bluetooth
- Required: Bluetooth Low Energy, Windows 10, 11 or later, macOS 12 or later, Linux*, ChromeOS*, iPadOS* 15 or later, Android™ OS* 12 or later. (*Device basic functions will be supported without software for systems other than Windows and macOS)
- Logi Bolt USB receiver
- Compatible with Logi Bolt USB Receiver (not included), Not compatible with other Logitech USB receivers.
- Customization app
- Logi Options+, Logi Tune
- Certified for
- WWCB, Engineered for Intel Evo laptops
Dimensions (Signature Comfort M840 L (with battery) - receiver not included)
- Height
- 4.8 in (121.8 mm)
- Width
- 2.93 in (74.3 mm)
- Depth
- 1.7 in (43.2 mm)
- Weight
- 3.69 oz (104.6 g)
In the Box
- Mouse with 1 x AA battery (included)
- User documentation
