ERGONOMIC WAVE DESIGN – The MK550 uses Logitech’s Constant Curve layout for reduced stress and better, more natural typing INTEGRATED PALM REST – Experience lower wrist fatigue with the integrated palm rest , Three options for leg height allow you to adjust the keyboard to the height that feels most comfortable to you PRECISION LASER MOUSE – Say goodbye to your touchpad with the included MK510 precision laser mouse; The mouse and keyboard are so energy efficient LONG BATTERY LIFE – Use your keyboard and mouse for longer with the MK550’s extended battery life. The K350 keyboard has a battery life of up to 3 years, and the mouse, up to 2 years SIMPLE SETUP – There’s no additional setup involved when using the MK550. Windows based PC Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10