HERO is a revolutionary optical sensor designed by Logitech G to deliver amazing performance and up to 10 times the power efficiency. With HERO sensor, G603 also delivers exceptionally accurate and consistent performance across the entire DPI range, with zero smoothing, filtering or pixel rounding from 200 to 12,000 DPI. LIGHTSPEED wireless technology features a super fast 1 ms report rate with the end-to-end optimized wireless solution. G603 delivers incredible responsiveness and reliability for competition-level performance.