The IK Multimedia AmpliTube iRig Guitar Interface Adapter for iOS Devices is the easiest way to get your instrument's signal into iPhone/iPod touch/iPad. It features a standard 1/4" instrument jack, a standard 1/8" (3.5mm) headphone out jack and the iOS standard 1/8" TRRS jack for input on your iOS device. All you have to do is make your connections, then launch AmpliTube iOS or your favorite guitar/recording app and you're ready to go. The iRig is the ideal companion not only to the mobile AmpliTube series of apps, but also works with any other recording, processing or tuning app. Plus, you can also use the iRig with line level signal sources such as synthesizers, keyboards or mixers.