?Descriptions: Dual-mode switch system: Game mode & Multi-media mode. A DPI Switcher. High-intensity cable. Ultra-precise Scroll Wheel.Compact mouse body design｣ｬ comfort grip｣ｬ avoid tireness after long working｣ｬ light and portable for mobile professional. HyperFast scrolling fly through long documents at hyper-speed with the nearly frictionless scroll wheel｣ｬ or shift instantly to precise scrolling. High Optical precision experience smoother cursor control on virtually any surface. This Wired Gaming Optical Mouse is a good choice for you: Game & Multi-media modes｣ｬ Ergonomic Design｣ｬ High Accuracy｣ｬ High Quality｣ｬ Modern Design.... 500-1000Hz FPS Adjustable design  Specifications: Application:Desktop｣ｬLaptop Operation systems: Windows ME｣ｬ 2000｣ｬ XP｣ｬ Vista｣ｬ Win 7 DPI:800-1200-1600-2000 Color:black Net Weight: 180 g Type:wired Hand Orientation:Right Dimension: 12.3 x 7.6 x 3.9cm  Package Included: 1 X Black  Optical USB Gaming Mouse