The monaural UC Proset 10P Wideband Headset from VXi comes with a 6.0mm bi-directional noise-canceling microphone, which improves communication by cutting 89% of the background noise. The headset has an adjustable headband which expands up to 13" and clicks in place for a comfortable fit. It enables you to stay focused, with its stable, custom fit. You can wear this headset comfortably all day, every day.