Product Information Color : Classic Black Size : Mouse Style : DeathAdder Elite Wireless Type : Radio Frequency Number Of USB 2.0 Ports : 1 Hardware Platform : PC Operating System : Microsoft Windows Item Weight : 4.6 ounces Product Dimensions : 2.9 x 1.69 x 5 inches Item Dimensions L X W X H : 2.9 x 1.69 x 5 inches Color : Classic Black Batteries : 1 AAA batteries required. SingleEquipped with the new eSports-grade optical sensor that has true 16,000 DPI and true tracking at 450 Inches Per Second (IPS), the Razer DeathAdder Elite gives you the absolute advantage of having the fastest sensor in the world. Engineered to redefine the standards of accuracy and speed, this incredible mouse sensor crushes the competition with a Resolution Accuracy of 99.4 percent, so you can land more killing blows with pinpoint precision.1000 Herz Ultrapolling.