57 g Ultra-Lightweight Design - Faster swipes, Effortless control: Re-engineered with weight optimizations and a smooth-touch finish, our latest DeathAdder delivers faster, tighter movement while retaining its award-winning ergonomic shape. Razer HyperSpeed Wireless Gen-2 - Industry-leading speed and reliability: Feel the difference with an ultra-stable wireless system that’s over 63% more efficient, and capable of true 8000 Hz polling rate with 37% lower latency than previous gen. Razer Optical Scroll Wheel- No unintentional scrolls, Pro-grade precision: More precise and durable than mechanical variants, our first optical scroll for esports mice delivers pro-grade tracking and crucial tactile feedback required for high-precision gaming. Razer Focus Pro 45K Optical Sensor Gen-2 - Peak esports precision: Aim true with an improved 45K DPI, 900 IPS, and 85 G - Supported by deep sensor customization options, enjoy flawless tracking on a variety of surfaces with 99,8% resolution accuracy. Up To 150 Hours of Battery Life - Power through the competition: With vastly improved wireless efficiency for extended battery life, enjoy up to 150 hours of high-performance gameplay on 1000 Hz or 24 hours on 8000 Hz. Razer Optical Mouse Switches Gen-4 - Top-tier durability, tactility, and speed: Boasting a staggering click lifecycle of over 100 million and greatly enhanced click feel, outlast them all with crisp, responsive switches that have been completely redesigned from the ground up.