Logitech K350 Wireless Wave Ergonomic Keyboard with Unifying Wireless is a keyboard designed to improve your comfort while you work. The keyboard has a wave design with a Constant Curve layout. This means that the keyboard is curved to guide your hands into the correct position. The keyboard also has a cushioned palm rest to make your work easier and more comfortable. The Logitech K350 Wireless Wave Ergonomic Keyboard with Unifying Wireless also has a longer battery life. This feature gives you up to three years of battery life.