Razer Deathadder Elite Mouse.

Equipped with the new eSports-grade optical sensor that has 16,000 DPI and tracking at 450 Inches per Second, the Razer DeathAdder Elite gives you the advantage of having the fastest sensor in the world. Made to redefine the standards of accuracy and speed, this mouse sensor crushes the competition with a Resolution Accuracy of 99.4%. Compatible with USB. Includes mouse. Laser. Optical sensor. 7 buttons. Programmable buttons. Scroll wheel. 4 way scroll. Batteries not included. Manufacturers 2 year guarantee.