Practical features such as volume control, headphone output, aux input, and instrument input are located on the edges of the iGTR. The instrument input is a standard 1/4-inch mono jack located next to the minijack aux input on the bottom of the unit.
A minijack aux cable is included with the iGTR, which lets you play your guitar along with an MP3 or CD player. There's also a detachable clip that snaps on to the back of the iGTR and lets you walk around your house like a rock star.
All the iGTR's interesting controls are located on the front, including three oversized knobs for amp gain, ambience effects (delay, reverb chorus), and modulation effects (tremelo, wah, and phaser). Each knob includes a three-way switch to designate what the knob controls. The control layout is intuitive and easy to manipulate, although some guitarists will balk at the limited settings.