Mk545 advanced is an instantly familiar wireless keyboard and mouse Combo built for precision, comfort and reliability. The full size keyboard features a familiar key shape, size, and feeling – optimized for precision and noise reduction. The keyboard's textured palm rest and adjustable tilt legs keep you comfortable for long stretches. The advanced, full size mouse is designed to fit comfortably in either hand – and laser grade tracking and advanced controls keep you in command. Plug and play your keyboard and mouse with one tiny USB receiver with Logitech unifying technology. You'll get a reliable – and encrypted – wireless connection up to 10 meters away with virtually no delays or dropouts.