59g Ultra-lightweight Design No deadweight: Made more than 25% lighter than the Razer DeathAdder V2, enjoy a level of speed and control favored by the world’s top players with one of the lightest ergonomic esports mice ever created. Refined Ergonomic Form Optimized for unrivalled handling and comfort: Developed in partnership with top esports pros, the iconic shape of the Razer DeathAdder has been further improved to continue its legacy of award-winning handling and comfort. Razer Focus Pro 30K Optical Sensor Best-in-class precision: Razer’s brand-new sensor provides flawless tracking performance on a wider variety of surfaces including glass—supported by intelligent functions for enhanced aim and control. Razer Optical Mouse Switches Gen-3 No double-clicking issues: No debounce delay. From an improved 90-million click lifecycle with zero double-clicking issues, to a blistering 0.2ms actuation with no debounce delay, the mouse has the reliability and speed built for esports. Razer 8000Hz HyperPolling Technology 8x faster than other gaming mice: With a true 8000Hz polling rate, the mouse can communicate its position and clicks to your PC at up to 8000 times a second—for near-zero input latency and a level of speed you’ve yet to experience. Razer Speedflex Cable Minimal drag and fluid swipes: Woven for greater flexibility and designed to produce minimal drag, you’ll be able to perform quicker, smoother swipes for tighter mouse control. Optimize Mouse accuray - Improve accuracy by disabling the "Enhance pointer precision" option in the Windows mouse settings, and further optimize performance using the Razer Synapse App.