Logitech M325 910-003120 Violet 5 Buttons Tilt Wheel USB RF Wireless Optical 1000 dpi Mouse Maximum dpi: 1000 dpi Power Supply: 1 x AA Battery Distance: 33' Operating System Supported: Windows Vista or Windows 7, Windows 8 Mac OS X 10.5 or later Chrome OS Linux kernel 2.6+ System Requirement: USB port Package Contents: Mouse Logitech Unifying receiver 1 AA battery (pre-installed) User documentation