Award-winning Ergonomic Design For Maximum Comfort: 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 For Unparalleled Wireless Performance: Featuring the same high-speed Razer HyperSpeed Wireless technology used in our top-tier gaming mice, unleash your true potential with an ultra-low latency wireless connection. 240-Hour Battery Life (2.4 GHz) : With up to 240* hours of battery life with Razer HyperSpeed ​​Wireless and up to 580 hours with Bluetooth, this mouse lets you game for hours without needing to replace the battery. *Measured with an AA alkaline battery Second-Generation Razer Mechanical Switches : With new, gold-plated contact points, the switches resist wear and tear and last up to 60 million clicks, so you'll enjoy precise, consistent control. 7 Programmable Buttons : Whether you're configuring just the essentials or going all out with advanced macros, you have complete control at your fingertips with 2 unique edge buttons and 2 side buttons. Advanced Razer 5G Optical Sensor with 14,000 DPI : Enjoy fast, pixel-precise accuracy with an enhanced sensor that captures every movement accurately and flawlessly.