Abstract: System and methods can provide both hearing enhancement and hearing protection. An audiogram can be determined for either an individual person or a group of people. A frequency spectrum of an environment can be determined for an environment within which hearing enhancement and/or hearing protection is needed. The audiogram and the frequency spectrum of the environment can be used to modify an electronic signal to attenuate noise and to amplify information. The information can be voice, sirens, bells, or anything else that the user desires to hear.

Abstract: An earpiece that substantially lacks a lower lobe is disclosed. The earpiece has a generally arcuate rib having upper and lower ends. A generally vertical rib extends substantially between the upper and lower ends of the generally arcuate rib. A lobe is formed at the upper end of the arcuate rib. No lobe is similarly formed at the lower end of the arcuate rib. Eliminating the lower lobe mitigates discomfort during use and also reduces the likelihood of tissue damage and infection.

Abstract: An earpiece suitable for use with two-way radios is configured to be captured at least partially within the conchae of an ear. The earpiece is configured for use in either ear. The earpiece is particularly suited for use by police and security personnel because it reduces costs associated with the manufacture, purchase, and inventory thereof, while allowing both the radio and ambient sound to be readily heard through both ears.