COMFORT AND PRECISION Compact & lightweight design Plug & Play - no drivers required No mouse pad required 4-button optical mouse Mouse resolution: 800/1000/1200 DPI Works on most surfaces Specifications Interface: USB, 1.35 m cable Optical resolution: 800/1000/1200 DPI Power consumption: 5 V DC up to 5 mA Dimensions: 99 x 65 x 37 mm Net weight: 71g System requirements Windows 7/8/10 Free USB port