HAVIT HV-MS898 Programmable 3200 DPI Precision Optical Gaming Mouse Designed for All-day Gaming Comfort 7 programmable buttons with multi-task macro functionality Ergonomic design with optimized weighting and skid proof surfaces for all-day gaming comfort Precision optical sensor that can be adjusted to 3200, 2400, 1200, or 500 dpi Light up design that changes colors based on settings Positioning engine firmware that is optimized for hardcore gaming