This wireless combo, comprising a keyboard and optical mouse, transmits using the proven 2.4 GHz standard, which offers a range of up to 10 m while providing 360 degrees coverage. Furthermore, the design and the choice of materials protect the keyboard against splash-damage, allowing you to enjoy a refreshing beverage while you work without taking too much of a risk. The high-performance 1000 DPI optical sensor offers you smooth and accurate mouse-pointer control, while the symmetrical design allows for ambidextrous use. Reliable 2.4GHz wireless connection Up to 10m range & 360 degrees coverage Spill-resistant keyboard design Fn multimedia hotkeys 1000 DPI optical mouse Micro USB receiver Up to 12 months of battery life Windows XP/Vista/7/8/10, USB port What's in the box Wireless keyboard Mouse Nano USB receiver 2 AA alkaline batteries(installed) Quick Start Guide