The Plantronics .Audio 355 for multimedia stereo NC headset. Next version of the .Audio 350. Forty-millimeter speakers deliver studio-quality audio with maximum bass response. Don?t just hear music, DVDs, and games?feel them. For Skype , Windows Live?, or Yahoo Messenger Internet calling, a QuickAdjust? microphone provides precise placement and noise-canceling features ensure that Internet callers can hear you clearly. In-line controls let you adjust music volume or mute the microphone with just a touch