Complex sentence: Started out solely focused in telephone headsets for call centers, in 1997, Accutone saw the growth in the computer VoIP market, so it began its development of USB headsets, and Accutone is now one of Asia's earliest developer in this product.
Split into simpler sentences: Started out solely focused in telephone headsets for call centers, in 1997, Accutone saw the growth in computer VoIP market. So it began its development of USB headsets, and is one of Asia's earliest developer in this product.