... with strong function with it, music watching movies. Computer remote controller* Set hotkey: A, B, C, D key: Set ... Support software: WMP, RealPlayer, KMPlayer, TTPlayer, WinDVD, PowerDVD 6) The infrared ray control from a distance 7) Application: Windows 2000 ... use it for along time, removed batteries, in order to the components 2) If the remote is not insensitive, please timely replace batteries