Wave-shaped keyboard features a cushioned palm rest for unmatched comfort. With its gradual wave-shaped contour, this key frame supports the varied lengths of your fingers. Three-year battery life means you won't spend your time tracking down new batteries. Connect with ease by simply plugging in the tiny receiver. Advanced 2.4 GHz wireless provides a long-range connection that virtually eliminates delays, dropouts & interference. Adjustable keyboard height offers three options for complete comfort. Convenient one-touch controls give you instant access to volume & media playback. Programmable keys can be easily customized to open your favorite applications, folders or web pages.