Logitech MX Master Frequently Asked Questions

1. Reduce the distance between the device and the Bluetooth receiver. If it’s an internal Bluetooth
card (ex. laptop) then try improving the line of sight of the device to the computer.
2. Check for radio frequency (RF) interference from other sources, such as wireless speakers, cell
phone, and so on.
3. Check if the device works with the USB receiver. If it doesn’t, then most likely the device is
defective.
Windows:
 Try updating your Bluetooth chipset driver.
 Check for Windows updates.
 For a Bluetooth USB dongle, update the drivers for it from the manufacturer’s website.
 For an internal Bluetooth chipset, refer to the computer’s motherboard manufacturer drivers.
Mac:
 Check for OS updates.
 +Scroll wheel stuck or does not respond
Likely Cause(s):
 Potential hardware issue
 Operating system /software settings
 After installing and/or updating Logitech Options on Mac OS 10.14 (Mojave) or higher Mac OS
requires user permission to be set. Please follow these steps.
Symptom(s):
 Scroll wheel button moves but it doesn’t scroll on the page
 Ratched mode doesn’t work
 Free spin doesn’t work
Possible solutions:
NOTE: If you have Mac OS 10.14 (Mojave) or higher and the scroll wheel stopped working since
installing and/or updating Logitech Options update, please set the user permissions following
these steps.
1. Clean the scroll wheel with compressed air.
2. Make sure the wheel itself moves and isn’t physically stuck.
3. Check if the settings in Logitech Options for the scroll wheel are correctly selected. See Fixed
scroll wheel mode setting on MX Master mouse.
4. Disable Smooth Scrolling in Logitech Options.

Logitech MX Master Specifications

General

Purpose	Office
Scroll type	Wheel
Buttons type	Pressed buttons
Frequency band	2.4 GHz
Buttons quantity	7
Device interface	RF Wireless + Bluetooth
Bluetooth version	4.0
Recommended usage	PC/Laptop
Scrolling directions	Vertical/Horizontal
Number of scroll wheels	2
Programmable mouse buttons	Yes
Movement detection technology	Laser
Form factor	Right-hand
Product color	Black
Surface coloration	Monochromatic
Receiver type	Unifying receiver
Wireless receiver interface	USB Type-A
Wireless range	10 m
Battery type	Built-in battery
Power source	Batteries
Battery capacity	500 mAh
Battery life (max)	240 h
Charging port type	Micro-USB Type-B
Mac operating systems supported	Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks, Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.15.3 Catalina, Mac OS X 11.0 Big Sur
Mobile operating systems supported	iPadOS
Windows operating systems supported	Windows 10, Windows 11
Package depth	150 mm
Package width	63 mm
Package height	194 mm
Package weight	331.4 g
Cables included	Micro-USB
Quantity per pallet	756 pc(s)
Master (outer) case width	160 mm
Master (outer) case height	212 mm
Master (outer) case length	265 mm
Master (outer) case weight	1610 g
Quantity per master (outer) case	4 pc(s)
Master (outer) case GTIN (EAN/UPC)	50992060562114
Quantity per intermodal container (20ft)	12360 pc(s)
Quantity per intermodal container (40ft)	25440 pc(s)
Quantity per intermodal container (40ft, HC)	30528 pc(s)

Weight and Dimensions

Depth	48.4 mm
Width	126 mm
Height	85.7 mm
Weight	145 g
Receiver height	18.4 mm
Receiver weight	2 g