The perfect combination of great comfort, modern design, powerful features and extra-long battery life Increase your productivity Type on a full-size layout with 12 enhanced F-keys for media control. Skip a song, pause a video or mute audio instantly Extra-long battery life Enjoy an awesome 3-year keyboard and 18-month mouse battery life, provided by our energy efficient engineering.* On/Off switch on mouse and keyboard Battery life indicator on mouse Nano-receiver storage in the mouse Automatic sleep mode when not in use * Keyboard battery life calculation based on an estimated two million keystrokes/year in an office environment. Mouse battery life may vary based on user and computing conditions. Improved comfort The generous palm rest, the contoured right-handed mouse