AmpKit LiNK connects your electric guitar (Or Bass) to your iPhone or iPad or iPod touch (* Excluding first Gen iPod touch) with audio out to headphone, powered speakers or PA. High fidelity and virtually no feedback.
AmpKit LiNK's revolutionary CrossTalkEliminator solves the feedback problem inherent in existing unpowered iPhone interfaces. The interface can be used with any recording, processing, or tuning application, including Agile Partners' GuitarToolkit, one of the highest-rated applications in the iTunes App Store. (*Excluding first-generation iPod touch)
Amp kit puts a complete guitar amp studio in your pocket :