Logitech M535 User Manual

 If the command returns back some information, then look for
"kCGSSessionSecureInputPID"=xxxx. The number xxxx points to the Process ID (PID)
of the application that has Secure Input enabled:
1. Launch Activity Monitor from /Applications/Utilities folder.
2. Search for PID which has secure input enabled.
Once you know which application has Secure Input enabled, close that application to resolve the
issues with Logitech Options.
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Supported operating systems for the Wireless Mouse M535 / M336 / M337
At the time of release, this product is supported on:
 Windows 10
 Windows 8
 Windows 7
 Mac OS X 10.8+
 Android 3.2+
 Chrome OS (version 44 or later)
See the product's Downloads page for the latest software support.
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Logitech M535 Specifications

General

Sensor technology	Optical
DPI	1000
Number of buttons	3
Battery life	Up to 10 months
Tracking Method	Optical
Wireless	Yes
Wireless Technology	Bluetooth
Color	Black
Battery type	1 AA
Dimensions	100.5 mm x 61.1 mm x 33.0 mm
Weight	82 grams
Compatibility	Windows, macOS, Linux
Connectivity	Bluetooth