Joining the best-selling NC-Series of headsets is the NC-455VM USB Over-Ear Stereo Headset. Built with a more robust profile, the NC-455VM USB features Andrea Communications exclusive noise-canceling microphone with internal windscreens that minimize breath popping. The NC-455VM USB includes an ALL NEW in-line control for up/down volume as well as both microphone and speaker mute.Product Features: Proprietary noise-canceling microphone with internal windscreens that minimize breath popping. Heavy duty flex boom and swivel allows for perfect placement of the microphone. 40mm stereo speakers with deep bass sound deliver crystal clear audio. Large over-ear cups reduce up to 75% of background noise. Plush, extra-thick leatherette on-ear cushions reduce background noise and are replaceable. Adjustable dual headband ensures a comfortable fit. Extra-long cable with ALL NEW in-line controls for up/down volume and both microphone and speaker mute. USB plug with built-in USB sound card.