Phonofone IIMade of porcelain and using 'passive' amplification alone (i.e. without the need of external power or batteries), the Phonofone II transforms any personal music player into a warm, rich and resonant sound. It 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).Buy $499.00 (Last updated: 22/10/2009) |