Logitech G502 Proteus Spectrum RGB Tunable Gaming Mouse, 12,000 DPI On-The-Fly DPI Shifting, Personalized Weight and Balance Tuning with (5) 3.6g Weights, 11 Programmable Buttons - NWCA Inc.
Memory Express Computer Products Inc. - The Logitech G G502 Proteus Spectrum RGB Gaming Mouse allows you to adjust the RGB lighting up to 16.8 million colours, and includes 16 programmable buttons,