Quite simply the plugs are the 'standard' consumer audio connector. It is possible to find them doing other thngs such as video or data but they started with audio. They are the coaxial type connector on all cunsumer audio/video equipment. they are round, approx 9mm across with an outer ring usually used for 'ground' and a center pin usually used for signal.

any questions?

Murray 06000047
Just increasing my post count