Abstract: In one embodiment, an earpiece system comprising an enhancer is provided. The enhancer is configured to receive an earbud of a speaker and to fit in a user's ear. The enhancer includes a first portion having a first surface that defines a concave crus relief feature. The enhancer further includes a second portion extending from the first portion and forming a sound tunnel having an opening at an end opposite the first portion, and a flexible skirt positioned with the sound tunnel and projecting over the second portion to resiliently seal with the user's ear canal when inserted therein.