48V phantom power adapter. Allows you to connect a lavalier or headworn microphone directly into a mixer console or mic preamp that is capable of supplying 48V phantom power. Converts the high 48V to lower voltages appropriate for small electret microphones. The mini-XLR jack (3-pin male) accepts most headworn and lav mic mini-XLR plugs and the standard XLR output easily connects to all mixer and preamp input.