Logitech G on X: "In 2014, we launched the G502 Proteus Core, which became the first in a line that grew to be the best selling gaming mouse on the market. #UltimateCountdown
Logitech G502 Proteus Core Tunable Gaming Mouse with Weight and Balance Tuning 695977073005 | eBay
Logitech G502 Proteus Core Tunable Gaming Mouse With Weight and Balance Tuning | eBay
Logitech G502 X review: two clicks forward, one scroll back | Rock Paper Shotgun
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.
Logitech G502 HERO vs Logitech G502 Proteus Spectrum - Which Mouse Is Better? - YouTube
Logitech G502 Proteus Core Review
Amazon.com: 2Sets Hotline Games 3.0 Plus Rounded Curved Edges Mouse Feet Skates Compatible with G502 Hero, Proteus Spectrum RGB Gaming Mouse feet Replacement (0.7mm,Smooth,Pure White PTFE) Professional Upgrade : Video Games