Audio equipment, namely, loudspeakers, audio mixers, headphones, headsets for telephones, headsets for cellular or mobile telephones, headsets for computers, headsets for audio and video systems; headsets for use in military operations; communications headsets for use with communication radios, intercom systems, or other communications network transceivers and communications headsets for use with microphones; microphones for mobile telephones; microphone accessories, namely, plug-in microphon...