The standard-sized keyboard with a numeric keypad, arrow keys, and nine function keys is comfortable, practical, and extremely durable. A single keystroke provides instant access to media controls: movies, music, internet, email, play/pause, volume, and more. Logitech's wireless Advanced 2.4 GHz technology ensures a fast, reliable connection with virtually no delays or dropouts, even at distances of up to 10 meters. Wherever you go with your computer, the compact mouse comes along. Work for months without needing to change batteries. The power switch helps save energy. Work and play anywhere. The wireless connection remains virtually free of delays, dropouts, or interference, providing you with a range of up to 10 meters.