Boss AC-3 Acoustic Simulator Guitar Effects Pedal Bundle with 9V Power Adapter, Gearlux Instrument Cable, Patch Cable, Picks, and Polishing Cloth BOSS's most advanced acoustic-guitar modeling in a compact pedal Four simulation modes: Standard, Jumbo, Enhanced, and Piezo-equipped Top and Body knobs for fine-tuning the virtual-body resonance Built-in reverb, optimized for acoustic-guitar simulation Convenient for live playing