GuitarJack is an audio interface for iPhone and iPad that allows the user to connect a wide range of instruments, microphones, and other audio hardware to the iPhone, iPad and iPod touch. This user report takes a look at the latest GuitarJack Model 2 (GJ2), which is designed to be compatible with iPhone 4, iPad 2, iPad, iPod touch (2nd, 3rd and 4th gen.). I tested the unit with an iPhone 4S running iOS 5.01. GJ2 has a broad range of functionality, so make sure to visit the company’s website for full details.
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