About this item High-Precision 16,000 DPI Optical Sensor: Offers on-the-fly sensitivity adjustment through dedicated DPI buttons (reprogrammable) for gaming Full Modular Customizability: 3 interchangeable side plates with 2, 7 and 12-button configurations Up to 19 Programmable Buttons: Allows for button remapping and assignment of complex macro functions through Razer Synapse Customizable Chroma RGB Color Profiles: Supports 16.8 million color combinations w/ included preset profiles Ridged, Rubberized Scroll Wheel for Maximum Accuracy: Small, tactile bumps increases grip and allows for more controlled scrolling in high-stakes gaming situations Durable Mechanical Switches: Supports up to 50 million clicks, backed by a 2 year warranty