Behringer AM400 Ultra Acoustic Modeler Ultimate Electric-To-Acoustic Guitar Modeling Effects Pedal Achieve realistic acoustic guitar modeling using any electric guitar Real Sound Modeling (RSM) combines state-of-the-art DSP technology with sophisticated algorithms to emulate real acoustic environments 4 authentic acoustic simulations: standard, large, piezo and bright with built-in reverb, optimized for acoustic-guitar simulation 2 individual outputs enable easy switching between electric and acoustic guitar sounds when using 2 separate amps Blue status LED for effect on/off and battery check