Disclosed are various designs of earbud structures including detachable and replaceable ear-wings and/or detachable and replaceable earplugs. In various embodiments, the body of a proposed earbud is a fixed component of the earbud which is configured to receive and accommodate different types of ear-wings and/or earplugs based on the user's need. Various embodiments of the proposed earbud designs provide an ear-wing structure that includes at least two components: a wing-shaped structure for fitting into the ear to achieve a desired stability, and a shell structure for attaching the wing-shaped structure onto the body of the earbud thereby attached the wing-shaped structure firmly onto the body of the earbud.