When sourcing wireless gaming sets, the most critical factor is latency (polling rate). Ensure the keyboard and mouse support a 1000Hz polling rate (1ms response time) via a 2.4GHz USB dongle to avoid input lag. For the mouse, look for a high-precision optical sensor with at least 12,000 DPI and 400 IPS tracking. For the keyboard, specify mechanical switches (Red, Blue, or Brown) with a lifespan of at least 50 million keystrokes. Additionally, verify N-Key Rollover (NKRO) to ensure multiple simultaneous key presses are registered correctly during intense gameplay.