Custom fitting system not for medical purposes for custom-fit in-ear devices comprised primarily of a headband, a modular earpiece, inflation pumps, silicone compounds, all sold together as a unit; custom-fit earphones; custom-fit headphones; custom-fit hearing devices, including headsets, headphones, ear buds, earphones and earpieces, not for medical use; custom-fit hearing protection devices, including headsets, headphones, ear buds, earphones and earpieces, not for medical use; hearing protection system not for medical use comprised of an ear plug with sound filters; custom-fit wireless communications headsets for telephones and mobile telephones; custom custom-fit hearing devices, including amplifiers not for medical use; amplification modules having digital signal processing capabilities

Customizable ear plugs for use as hearing protectors (not for medical use); software for determining in situ the acoustic seal provided by hearing protectors