A generally pyramid shaped sound module is provided that is attachable to
a balloon for producing hi-fidelity sound effects. The sound module
includes a piezoelectric element connected at the top of the pyramid
shaped piezo amplification device. An electric circuit is connected to
the piezoelectric element by wires. The electric circuit includes a power
supply, such as one or more batteries, and the circuitry necessary for
producing or reproducing a desired sound (e.g. musical notes, voices,
sounds, prerecorded sound, a combination of the aforementioned, etc.).
The pyramid shape allows the piezoelectric element to be coupled to the
balloon without physically touching the balloon surface. Thus, even when
the balloon begins to deflate, the sound quality of the sound module can
be maintained.