iRig HD 2 Studio-Quality Guitar Interface for iOS/MAC - $79 (Visalia)

This digital interface for guitar or bass works with iPhone, iPad, iPod touch, Mac and PC and lets you record music or practice with headphones.
Its adjustable input gain control provides easy signal adjustment for different instruments to achieve the ideal level and tone.
Be sure to pair this device with the AmpliTube apps for iOS and Mac/PC to unlock a ton of features.
Simulate amps and effects, create beats and make the music you have always wanted using only your phone! It has a 1/4" Amp Out jack that allows you to connect directly to the amp, and an instrument-level 1/4" input jack and studio-grade 24-bit A/D conversion.
With a 1/8" headphone output, the iRig HD 2 lets you practice silently.
Its high-quality preamp and level control gives you a nice sound and you can improve your skills anywhere without disturbing others.