Product Information: iRig 2 builds upon the success of its predecessor by introducing essential new features like adjustable input gain, cross-platform compatibility and a 1/4" amplifier output that will once again revolutionize the way you make your music while on the go. You'll love iRig 2's new adjustable gain dial, which works with its built-in 1/8" TRRS output connector to give you a true plug-and-play experience with your iPhone, iPad, iPod touch or Mac. Product Features: Warranty period: Limited 1 Year Warranty The sequel to the best-selling iRig interface 1/4 instrument input for use with guitar, bass and other line instruments 1/4 amplifier output for use with an external amplifier without an adaptor 1/8 TRRS output for use with iPhone, iPad, iPod touch and Mac 1/8 headphone output Compact and lightweight design Selectable dual-mode switch: FX and THRU Input gain thumbwheel for easy signal control Comes with microphone stand Velcro strip Comes with AmpliTube FREE for iOS (free download on the App Store) For more information and specifications, please refer to the manufacturers website