Resolution (DPI): up to 19000 CPI (steps of 50 CPI for 50 to 10000 CPI, steps of 100 CPI from 10000 to 19000 CPI; pre-defined: 400, 800 (default), 1600, 3200)
Specifications: Windows 10 or later, Windows 8, Windows 7, Windows RT**** Mac OS X 10.5 or later Chrome OS**** Linux Kernel 2.6+**** USB port **** Logitech Options software/button programming not compatible with Windows RT, Chrome OS or Linux Kernel 2.6+. 2 AA batteries required. (included)