An acoustic receiver comprises means for converting an input audio signal
into an acoustic signal. The receiver has a housing having a plurality of
sides that surround the converting means. One of the sides include an
output port for broadcasting the acoustic signal. A jacket fits around
the housing and has sections for engaging the sides. The sections are
generally flat. The jacket may also form a gap with a corresponding side
surface of the housing. A printed circuit board can be located within the
gap. The printed circuit board including electronics for processing said
input audio signal.