DESC: The HR-1R is a single muff, medium-weight passive noise reduction headset with dynamic noise canceling microphone. the headset has a noise reduction rating of 21 dB; suitable for use in a moderately noisy environment. The ergonomic headband design distributes the ear cushion pressure evenly over the entire ear with no pressure points, ensuring hours of comfortable wear. An added advantage of this headset design is that it folds into compact form for ease of storage.