Logitech MK215 Wireless Keyboard and Mouse

No learning curve involved. You will enjoy the comfort and simplicity of a traditional full-size keyboard layout from day one. Type as long as three years between battery changes and use your mouse for up to a year before replacing the battery. The three year battery life prediction is based on approximately two million keystrokes per year in an office environment. Like all batteries, your experience may vary based on the use and computing conditions.