Apogee Duet is an award-winning audio interface, headphone amp and MIDI interface making it easy to create professional recordings anywhere on your iPod touch, iPhone, iPad or Mac. With Apogee’s legendary digital audio conversion and world-class mic preamps, Duet is the best way to capture your music with incredible dimension and detail.

Another great Apogee product that I’ve used for a long time. Certainly worth a look if you’re recording.