United States:

Power Holdings Inc.,
711 Nugentown Rd,
Tuckerton, NJ 08087
phone: +1-732-746-2586
email: contact@powerholdingsinc.com

European Union:

euphony-audio / HD-INFO Ltd.,
Trg. J.J. Strossmayera 5,
10.000 Zagreb, Croatia
phone: +385 1 233-9048
email: contact@euphonyaudio.com