Ultra-Lightweight Design - Burst II Air pushes weight boundaries even lower at a best-in-class 47g with a solid top shell offering the perfect balance of durability, performance, and lightweight comfort Symmetrical Shape - The new and improved Burst II Air sees the continuation of the well-loved Burst shape, a right-handed symmetrical ergonomic design where comfort and performance converge seamlessly Owl-Eye Optical Sensor - Experience smooth, precise tracking with the upgraded Owl-Eye optical sensor with up to 26K DPI and 650 IPS (16.5m/s) tracking speed. A DPI button positioned on the side allows for quick DPI adjustments without software Titan Optical Switches - The upgraded TITAN Switch Optical with adjustable debounce provides a long-lasting 100 million click life cycle, and speed-of-light actuation for unprecedented speed and precision Click Tensioning - Left and right click buttons are built with a tensioning system that improves reliability and response time for the most accurate and satisfying click ever