The Logitech G900 Chaos Spectrum was the wireless mouse that proved competitive wireless gaming was possible when it launched in 2016 at 107 grams with the PMW3366 sensor. Before the G900, the idea of using wireless in competitive play was almost universally dismissed — the G900 changed that perception almost overnight. Its ambidextrous design with removable side buttons and dual-mode scroll wheel offered remarkable versatility. The G900 paved the way for the G Pro Wireless that would follow two years later and eventually dominate professional esports. At its release, reviewers consistently noted that the wireless performance was indistinguishable from wired. The G900 deserves recognition as the mouse that started the wireless revolution in competitive gaming.