Complex sentence: Introduced in 1965, the SM57 is one of the best selling microphones in the world and uses the Shure Unidyne III capsule, first introduced in 1959.
Split into simpler sentences: Introduced in 1965, the SM57 is one of the best selling microphones in the world. The SM57 uses a Shure Unidyne III capsule, first introduced in 1959.