IRig 2, a guitar interface for mobile devices. It allows users to connect guitars, basses, and other instruments to iPhones, iPads, and iPods for practice, performance, and recording.
Helpful information:
It plugs into the device's headphone jack.
It works with apps like AmpliTube, GarageBand, and others.
It features a gain control for adjusting input signal.
It has a 1/4" output for connecting to amps or speakers.
It does not require batteries.
It is also compatible with some Android devices.