Aula Series Ghost Shark II Colourful Light 7D Optical Competitive USB Wired Game Mouse, Maximum Resolution of 4000 DPI 1. This mouse is intelligent connectivity, no need to code, plug & play. 2. Ergonomic design, internally and externally, to create the ultimate game concept, long-term use without fatigue. 3.Unique "breathing" LED light provides a soothing and calming ambient light. Colourful light provide a constantly changing and unique look. 4. 6 cycle DPI color switch mode, 750DPI white, 1000DPI cyan, 1500DPI blue, 1750DPI green, 2000DPI pink, 2500DPI orange. 16 DPI drive mode: 250 DPI, 500 DPI, 750 DPI, 1000 DPI, 1250 DPI, 1500 DPI, 1750 DPI, 2000 DPI, 2250 DPI, 2500 DPI, 2750 DPI, 3000 DPI, 3250 DPI, 3500 DPI, 3750 DPI, 4000 DPI. 5. Adopt high quality cord to make the mouse more durable. 6. Built-in counterweight iron, feel comfortable, mobile and stability. 7. Buttons: 7 buttons with scroll wheel. 8. Excelent using experience, a gaming mouse worth to own!