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
This is the older version, not the one with Hero sensor.
Free S/H
https://www.amazon.com/Logitech-S…ics&sr=1-3