Feature: 1. 6400DPI optical sensor, the mouse can move quickly and accurately, thus satisfying the most basic game needs and achieving more precise control. 2. 1000Hz polling rate, ensures smooth movement in game, effectively improves accuracy and reduces misoperations. 3. Ergonomic design, comfortable grip. The anti-slip side skirt effectively increases friction on mouse side, reduces condition of slipping caused by hand sweat. 4. 5 independent programmable Hyperesponse buttons give you accurate controls for a competitive edge. 5. The Razer mechanical microswitch supports up to 10 million clicks for longer lifespan and extreme reliability. Specification: Features: 6400DPI optical sensor, the mouse can move quickly and accurately, thus satisfying the most basic game needs and achieving more precise control. 1000Hz polling rate, ensures smooth movement in game, effectively improves accuracy and reduces misoperations. Ergonomic design, comfortable grip. The anti-slip side skirt effectively increases friction on mouse side, reduces condition of slipping caused by hand sweat. 5 independent programmable Hyperesponse buttons give you accurate controls for a competitive edge. The Razer mechanical microswitch supports up to 10 million clicks for longer lifespan and extreme reliability. Specification: Brand: Razer Model: DeathAdder Essential Color: Black/White(optional) DPI: 6400DPI Movement speed: 220IPS Acceleration: 30G Programmable button: 5 Hyperesponse buttons Click lifespan: Up to 10 million times Polling rate: 1000Hz Cable: About 2.1m rubber wire Item size: 12.7 * 7.3 * 4.3cm /5 * 2.87 * 1.69in Item weight: Approx. 96g /3.39oz Packing list: 1 * Mouse Package List: 1 * Mouse