Custom-fit in-ear assistive listening devices not for medical purposes comprised primarily of a headband, a modular earpiece, inflation pumps, silicone compounds, all sold together as a unit; custom-fit headphones; custom-fit hearing protection devices, namely, communication headsets for use with communication radios, intercom systems, or other communications network transceivers, headphones, ear buds, earphones and earpieces in the nature of devices for hands-free use of communication radios...