The Boss RV-6 Reverb Guitar Pedal is powered by cutting-edge BOSS technology that gives you eight powerful and highly musical reverb effects. They range from room, hall, and plate algorithms to vintage-style spring reverb to immersive, modern-sounding textures. It supports mono or stereo operation with a pedal chain for conveniently switching between jacks. This Boss guitar effect pedal comes with a superb-sounding analog signal path. It offers both battery and AC adapter power supply options for your convenience.