Logitech M840L 大手人體工學無線滑鼠石墨灰正面，展示 SmartWheel 智能滾輪、LED 狀態指示燈與靜音按鍵配置。Logitech M840L large ergonomic wireless mouse in graphite color, showcasing SmartWheel, LED indicator, and silent clicks layout.

Logitech M840L 大手人體工學無線滑鼠的石墨灰與珍珠白雙色款俯視對比，展示 SmartWheel 智能滾輪與靜音按鍵配置。Logitech M850L large ergonomic wireless mouse in graphite and off-white colors, showcasing SmartWheel and silent clicks layout.

Logitech M840L 大手人體工學無線滑鼠石墨灰斜側視角，展示客製化雙側鍵、SmartWheel 智能滾輪、LED 指示燈與防滑橡膠波紋。Logitech M840L large ergonomic wireless mouse in graphite color, showcasing custom side buttons, SmartWheel, LED indicator, and textured rubber grip.

910-007735

M840L

$349

Bluetooth mouse for all-day comfort

Color: 黑色

黑色白色

Product variants

Quantity

Pickup Store

新界

沙田店

In stock

荃灣廣場店

In stock

T Town店

Out of stock

葵芳店

In stock

九龍

德福廣場1期店

In stock

深水埗黃金商場二店

In stock

深水埗黃金商場店

In stock

MOKO店

Out of stock

鑽石山店

Out of stock

港島

中環店

In stock

利東街店

In stock

網上商店

Out of stock

Other sales channels

HKTV Mall

Price.com.hk

Specifications and Compatibility

Dimensions

Signature Comfort M840 L (with battery) - receiver not included
Height: 121.8 mm
Width: 74.3 mm
Depth: 43.2 mm
Weight: 104.6 g
Signature Comfort M840 L (without battery) - receiver not included
Height: 121.8 mm
Width: 74.3 mm
Depth: 43.2 mm
Weight: 79.6 g

Technical 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)

Scroll Types

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: 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