Ergonomic Gaming 2.4GHz Wireless Keyboard and Mouse set E780 Ultra thin Energy saving+super silent White combo Powerful 2.4 GHz wireless connection with one tiny Unifying receiver that stays in your notebook, would work even 15+ feet away Energy Saving! Auto-sleep after couple minutes un-touching. The high-definition optical mouse has comfort and control in your hands with smooth, accurate tracking Humanized design, add a series of shortcut function keys cooperated with FN key Compact and comfortable combo, designed especially for the minimalistic, wire-free desktop, also good size for laptop