+48V Phantom Power Supply for Condenser Microphones, with 3-Pin XLR Input and 3-Pin XLR Output connectors. Power adapter included.
3-Pin XLR Input and Output
Power On/Off switch with LED
18Vac Power Adapter included
http://images.myfrenex.com/dataweb/E573E/Allegati/MANUALI/[ENG-ITA]_PPS-1__User_Manual.pdf