InnoLife 2400DPI Optical Adjustable 6D Button Wired Optical Professional Gaming Game Mice Mouse USB Mouse For Windows Mac Laptop PC (Black) High Quality, Compact Design and Measurable Weight Adjustable resolution: 800/1200/1600/2400DPI Buttons: 6 buttons with scroll wheel (Two Side-Buttons, DPI Switch) Optical technology works on most surfaces & Intelligent connectivity, no need to code, plug & play The USB cable length is up to about 1.4m