The MZA900P phantom power adapter is for connecting pre-polarized condenser microphones with a 1/8" jack plug to microphone inputs which provide 10 - 52V phantom power (P12 - P48). The connected microphone is supplied via the adapter. The adapter is also a quick solution if a microphone is to be used for both wired and wireless applications. It can also be used as a cable tester for XLR microphone cables.