Active noise reduction (ANR) technology, namely, ANR earplugs, ANR headsets, digital noise canceling microphones, and digital controllers; passive noise reduction technology, namely, headsets, earcups, and earplugs designed for personal hearing protection; augmented audio technology

Active noise reduction (ANR) technology not for telephone or medical use, namely, ANR earplugs for hearing protection, ANR headsets for hearing protection, digital noise canceling microphones, and digital controllers for use with ANR hearing protection systems; passive noise reduction technology not for telephone or medical use, namely, personal hearing protectors in the nature of ear cups and earplugs, and hearing protection communications systems for use with communication radios, intercom ...