Apparently, the Phonophone take the sound coming out of your headphones and amplifies it (without any mechanical parts) like an external speaker.
Through passive amplification alone, this unique piece instantly transforms any personal music player with earbuds into a sculptural audio console. 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 decibels (or roughly the maximum volume of laptop speakers).
I would totally buy one of these if I had $500 lying around. Bah to being broke.
