This Aula T640 Gaming Mechanical Keyboard Mouse Combo contains a full sized keyboard and optical mouse which is ready to transmit the proven 25Hz interface. Additionally, the design and the choice of materials that are used to protect the keyboard against splash or other physical damages lets you enjoy the refreshing beverage while you work without taking too much of a risk. The high-performance 800/1200/1600/2400/4800DPI optical sensor offers you smooth and accurate mouse-pointer control, while the symmetrical design allows for ambidextrous use. This keyboard and mouse gives you the most comfortable feeling when you play games.