63g Ultra-lightweight Design: Enjoy a level of speed and control favored by the world's top players with one of the lightest ergonomic esports mice ever created Focus Pro 30K Optical Sensor: Flawless tracking performance on a wider variety of surfaces including glass-supported by intelligent functions for enhanced aim and control Optical Mouse Switches Gen-3: 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 Up To 90 Hours of Battery Life: Smaller, lighter battery that boasts greater power efficiency and can run for up to 90 hours of continuous play - rechargeable via USB Type C Ergonomic Form: 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