Woot offers Razer DeathAdder V2 X HyperSpeed: Award-Winning Ergonomic Design - Ultra-Fast Wireless - 235hr Battery Life - 7 Programmable Buttons - Gen 2 Mechanical Switches - 5G 14K DPI Optical Sensor for $36.99 (reg. $59.99) free shipping with Prime. 

Product Description:
Over 13 million DeathAdders sold. Over a decade’s worth of awards to its name. Iconic ergonomics now comes with limitless control, thanks to dual wireless connectivity via ultra-fast Razer HyperSpeed Wireless or Bluetooth, and 7 programmable buttons including 2 new quick-access edge buttons.
 

• 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
• 7 Programmable Buttons: Have all the control you need with 2 unique quick-access edge buttons and 2 side buttons
• Weight Balanced: Batteries are seated at an angle in the mouse to provide optimal weight distribution