DESC: G51 Surround Sound Speaker System Your games have surround sound. Why don't you? Bring your games to life with 360-degree surround sound. Your games are meant to be experienced in surround sound. Now hear your enemies sneaking up behind you, and listen for action in every direction. Frequency Directed Dual Driver (FDD2) sound technology creates a uniform soundfield anywhere in the room. FDD2 eliminates the hot spots and uneven response of conventional dual-driver design. Matrix mode creates 5.1 surround sound from 2-channel stereo sound sources such as music or legacy games.