The TC Electronic Alter Ego X4 Echo Guitar Effect Pedal gives you impressive 12 delay tones and a variety of controls like Looper Level, Feedback, Delay Level, and Time. Use them to produce new tones each time with your guitar. Rock music fans will be pleased with the delays designed by experts that can be accessed using TonePrint. Using the input and output jacks, you can plug in your guitar and begin playing. This TC Electronic guitar pedal sports easy-to-use dials, loaded with different settings that can be combined to create your own exclusive acoustic effects. It is powered by a 9V DC adapter.