Phonofone

Without the use of external power or batteries, the Phonofone inventively exploits the virtues of horn acoustics to boost the audio output of standard earphones to up to 55 decibles* (or roughly the maximum volume of laptop speakers)

The Phonofone is constructed entirely from ceramic. Not only environmentally low impact, ceramics are inherently rigid and resonant, lending themselves well to this application.

Material: Ceramic
Dimensions: 11" x 9.5" x 20" science + sons (08/04)