An earbud capable of reassembly, the earbud has a speaker construct with a cylindrical body configured with threads that can be screwed together with an adapter sleeve which can be removably mounted to an earbud housing. The earbud also has an ear tip that has internal tubular support for mounting, on the peripheral wall of the tubular support, a protrusion is configured to changed shape when pressed, thereby adjusting the diameter of the ear tip to the size of an ear canal.