Earphones; loudspeakers; microphones; [ Communication appliances, namely, headphones and headsets for telephones, headphones and headsets for audio devices, headphones and headsets for theatrical equipment and electronic gaming machines, headsets for cellular or mobile phones, headsets for use with computers, wireless cellular phone headsets, wireless telephones, telephone sets, internet phones, devices for hands-free use of mobile phones, hands free kits for phones, cordless telephone apparatuses, cordless telephones, touch panel telephone sets or apparatuses, audio cables; circuit boards; digital televisions; earphone audio cables; earphone plug connectors; earphone cable connectors; ] audio speakers; speaker boxes in the nature of speaker enclosures [ ; telephones; video conference devices, namely, video conferencing telephones, televisions for video conferencing; internet phones; communication equipment, namely, amplifier for wireless communications and apparatus for transmission of communication; telephone hands-free devices; acoustic frequency response testers ]