The sleek design and comfort-curve layout keep keys within easy reach, while straightening wrists with ergonomic palm support that protects against inflammation and repetitive stress injuries. The split spacebar offers new backspace functionality to help you make the most of your keystrokes. It helps you keep your wrists in a neutral position, while providing functionality and shortcuts that improve typing efficiency. USB connectivity. Hot keys functions x 1. Programmable hot keys for quick access to chosen programs. Programmable favourites keys. Spill resistant. Batteries required 1 x AA (included).