VicTsing 2500 DPI USB Wired Gaming Mouse, 9 Programmable Buttons Professional Gaming mice for Laptop Computer Macbook Pro Gamers, Black(Upgrade Version) Sweatproof and antiskid surface design brings you comfortable operation and makes you not feel tired when you use it for a long time. High-grade USB braided wire with magnet ring has great performance of anti-interface 9 Programmable Buttons (Left/Right/Mid/Forward/Backward/DPI +/DPI -/Fire Key\Light Switch Button) have different functions and make it easier to operate during the game. You can define the functions of these buttons by yourself Easily adjust the DPI (DPI: 1000-1500-2000-2500) by the "DPI +" and "DPI -" buttons. The computer will show you the prompt. Easy operation! (Ps: The resolution can reach up to 6000DPI by the software/CD drive) Built-in metal encoder makes locating and pause more reliable and you can move the mouse more smoothly;Precise Localization: Professional gaming mouse chip makes localization more precise Sensitive data transmission without delay, responding more rapid and reliable; Antiskid Scroll: Convenient for browsing web and file