【Precision Optical Engine】High-end optical technology ensures accurate cursor positioning for precise control. 【Cool LED Lighting】Equipped with stylish LED illumination, adding a vibrant aesthetic to your desktop setup. 【Ergonomic Design】Crafted with ergonomics in mind, offering a comfortable grip and flexible operation for extended use. 【Adjustable DPI】Features three DPI settings (800/1600/2400) for customizable sensitivity to suit various tasks and preferences. 【Durable Construction】Built with high-quality ABS material and designed for longevity with a 5-million click lifespan. 【Wide Compatibility】Compatible with multiple Windows versions, including Windows 2000, XP, 7, 8, and 10, ensuring versatility across different systems. Specifications: Material: ABS Number of buttons: 4 DPI: 800-1600-2400 Current and voltage: DC 5V / <80mA Key life: 5 million times Weight: about 106g Dimensions: 120 (length) x 65 (width) x 38 (height) mm Applicable systems: Windows 2000, WIN XP, WIN7, WIN8, WIN10, etc.