The Hard Hat Clip-On 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 dual mini connector for use with all CrewPlex beltpacks. Headset attaches to most standard hard hats.This headset has a Noise Reduction Rating of 20 dB.