... distance: up to 18mColor: SilverButtons: Power, E-mail, Internet, Move Windows, Close Windows, Switch Windows, Hotkey A/B ... PC up to 18m.Supports softwares such as Adobe Acrobat, Internet Explorer, PowerPoint, Quicktime, WMP, Windows Media Player, WinAmp, RealPlayer, ... PowerDVD....Supports number input.Powerful keys: Power, E-mail, Internet, Move Windows, Close Windows, Switch Windows, Hotkey A/B ...