MUS-6B-01 Wired optical mouse, USB, black COMFORT AND PRECISION Compact & lightweight design Plug & Play - no drivers required No mouse pad required 6-button wired optical mouse CPI button for quick resolution changes (400 - 1600 DPI) Next/Previous buttons for faster Internet browsing Works on most surfaces Specifications Interface: USB, 1.35 m cable Optical resolution: 400-800-1200-1600 DPI Power consumption: 5 V DC up to 5 mA Dimensions: 110*68*38mm Net weight: 74g System requirements Windows 7/8/10 Free USB port