.Audio 370 IS for PC multimedia, Mic: Boom, Mono Plantronics introduced the first lightweight communications headset in 1962 and is today the world's leading designer, manufacturer and marketer of lightweight communications headset products. Plantronics offers mobile headsets to address the cordless and mobile phone market, next-generation computer audio headset products for computer applications and corded and cordless headsets and systems for the office, small office/home office and call centers.