Colorful Backlight 4000DPI Optical Wired Gaming Mouse Mice Feature: new and high quality. Buttons: 6 buttons with scroll wheel. Tracking systems: Optical. The Max DPI: 4000DPI. DPI Switch: 1200/2500/3200DPI/4000DPI. Ultra-precise Scroll Wheel. Optical technology works on most surfaces. Ergonomically designed, long-term use without fatigue. Intelligent connectivity, no need to, plug & play. Built-weight iron, feel comfortable, mobile and stability. Life: 5 million cycle. Size: 130(L) x 71(W) x 43(H)mm. Weight: about 132g. XP,, Windows 7, ME, 2000 and...or latest. User for: The high-end players, gaming players. Package Content: 1 PC Gaming Mouse (without retail package) [Product] - YaChu Colorful Backlight 4000DPI Optical Wired Gaming Mouse Mice [Style] - We offer a variety of styles, including simple, elegant, interesting, and more, and we are confident in satisfying you. [Function] - While meeting your needs, it may even exceed your expectations, and we are responsible for the product. Attention: Please use according to the product instructions! Not satisfied with the product? - Yes! [After sales Service] - Please contact customer service, we provide a 1931% return guarantee.