Meet the Focusrite iTrack One Pre: a compact microphone preamp for iPhone and iPad that generates phantom power from your devices for condenser microphones. It also comes with instrument input, so you can record directly to GarageBand, Cubasis, and other popular apps.
iTrack One Pre is certified to work with your favorite iOS devices. It comes with an illuminated gain halo to help you find the right recording level. Costs under $130 at this time.[where to get it]