What is the variety / name of earphones that plug into (piano) keyboard?

keyboards for music that you must hold in mind: query icy_snow88 : What is the sort / name of earphones that plug into (piano) keyboard I am the kind / name of headphones that connect to a piano or keyboard for electronic music boxes / router (there is a name for it, but I do not know at this time) research. You are not a standard helmet, I know, and the finish of the line (metal) is greater than regular for standard headphones. What would a "connector unimatch", or is it one thing else?

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