About this item Award-Winning Ergonomic Design: Trusted by over 13 million fans worldwide, the DeathAdder’s iconic shape has provided wins for countless pros more than any other mouse—including the three-time League of Legends world champ, Faker Ultra-Fast Razer HyperSpeed Wireless: Featuring the same high-speed Razer HyperSpeed Wireless technology used in our top-tier gaming mice with an ultra-low latency wireless connection Long Battery Life: With up to 235 hours of seamless low-latency gaming with Razer HyperSpeed Wireless (2.4GHz), and up to 615 hours with Bluetooth, the mouse can go for ages before its battery needs replacing Razer Mechanical Mouse Switches Gen-2: Experience crisp and consistent execution with switches that have new gold-plated contact points, are less prone to degrading, and have a longer lifespan of up to 60 million clicks Razer 5G Advanced 14K DPI Optical Sensor: Enjoy responsive, pixel-precise aim with an improved sensor that flawlessly tracks your movement with zero spinouts