Logitech G on Twitter: "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 Spectrum Review
Original Logitech mx518 Mouse G502 HERO (LOL) Limited 16000DPI /G502 Professional Gaming Mouse 12000DPI RGB Proteus Spectrum|Mice| - AliExpress