iRig PRE is a nifty little device from IK Multimedia allows you to use any professional XLR microphone with iPhone, iPod touch and iPad. It has the essential features that you would find in many professional; studio mic pre-amps.

It features an adjustable gain control, 48-volt phantom power supplied by a 9V battery and an audio/headphone output jack so you can monitor what’s going through to your device in real-time.
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