Patent ID: 7822218

Claim:
A hearing aid or ear monitor comprising a housing and a miniature loudspeaker, wherein: the housing has a first compartment and a sound outlet port toward the surroundings of the housing, the miniature loudspeaker is removably receivable in the first compartment so that the sound outlet port is at least substantially sealed around a predetermined portion of the miniature loudspeaker, the miniature loudspeaker comprises a sound outlet acoustically coupled to the sound outlet port, and the first compartment and the miniature loudspeaker comprise mating first and second electrically conducting contact means adapted to provide solderless/solderfree, electrical conduction between the contact means of the first compartment and the miniature loudspeaker, wherein the sound outlet port has a predetermined inner contour in a predetermined plane, and the miniature loudspeaker has an outer contour, in a plane perpendicular to an axis of the miniature loudspeaker through the miniature loudspeaker and the sound outlet thereof, and over a majority of its length from a position farthest from the outlet and toward the outlet, which outer contour may be circumscribed by the inner contour of the sound outlet port, and wherein the miniature loudspeaker comprises a pair of diaphragms, the first sides of which are oppositely directed.