Guitar/ Bass to iPhone/ iPad adaptor - 1/4" (6.35mm) instrument input jack - 1/4" (6.35mm) link-thru to amp output jack - Stereo mini jack output for headphones, monitors, etc ... - Short cable w/ P2 connector plug for mobile devices - works with: iPhone 3G and up, iPad (all models), iPod Touch 2 and up - compatible with other platforms (Android, Blackberry, Windows Phone, etc..), depending on availability of P2 input connector and hardware performance - perfect for recording your performance or playing live to your own recordings or background tracks - works great with effect or amp modelling apps - use with tuner apps to create a high precision, large display instrument tuner