The Hard Hat/Helmet Headset is part of a line of specialty communications headsets that incorporate features that are uniquely suited to certain industrial environments. The dual-ear headset provides noise reduction in demanding and high-noise environments where the use of a hard-hat or safety helmet is required. Ideal for applications such as construction, manufacturing, and public works, or anywhere communication is critical. The hard hat headset uses a short dual mini connector for use only with the CrewPlex MR10 pack. This headset can be used along with most standard hard hats or helmets .This headset has a Noise Reduction Rating of 23 dB.