The name the C-30's is neither big,small,nor clever,but comes from a form of compact cassette.We use plectrums [also known as 'picks' in the US for some reason] with guitars and bass which have metal strings and are plugged into amplifiers and speakers with leads.And drums with cymbals.And drumsticks to hit them with.We 'sing?!' into microphones which are on stands and these 'mics' are plugged into what is generally termed a 'Public Address System' [P.A. for short].Nice!