Pro Intercom DMH920 HeadsetWeighing only 15. 3 oz the DMH920 is much lighter than its appearance suggests. The noise canceling microphone is mounted on a flexible, steel reinforced boom which can be bent for optimum positioning. Exceptionally high quality transducers provide wide smooth frequency response, reducing the onset of ear fatigue for any who spend many hours wearing headsets. Deep, comfortable ear cushions have excellent external noise exclusion characteristics. The