About Razer For Gamers. By Gamers. It's not just a tagline. It's a mission. It's exactly what drives Razer to create products which constantly tilt the competition in your favor. From behind the drawing board all the way to the tournament stage, each step is controlled by the undeniable desire for all gamers - to always win. The Essential Gaming Mouse Kickstart a proper gaming rig with the Razer Deathadder Essential. The 6,400 DPI optical sensor enables fast and precise swipes for great control, while an ergonomic form allows for extended hours of gaming. The mouse also features 5 Hyperesponse buttons with up to 10 million clicks durability. True 6,400 DPI Optical Sensor — Control with fast and precise swipes Ergonomic Form Factor — Designed for extended hours of gaming High Durability — 5 Hyperesponse buttons with a durability of up to 10 million clicks True 6,400 DPI Optical Sensor Always stay in control. The Razer Deathadder Essential features a true 6,400 DPI optical sensor with a proven history of performance for fast and precise swipes. This gives you smooth and seamless control in the face of a chaotic battle. Ergonomic Form Maintain high performance during gaming marathons. The ergonomic form provides a comfortable fit for your hands, so you'll never falter in the heat of battle during long hours of gameplay. High Durability The Razer Deathadder Essential is designed with high durability to maintain exceptional performance quality through intense gaming sessions. Its 5 Hyperesponse buttons have been laboratory tested for up to 10 million clicks to ensure that this is the last mouse standing in battle.