Behringer UF300 Ultra Flanger 2-Mode Flanger Effects Pedal Get 2 flangers in onefrom jet-plane to thick chorus, vibrato and short delay effects Flexible 2-mode switch lets you choose between classic and detuned flanger effects Dedicated Manual, Depth, Rate and Resonance controls for awesome sound shaping Blue status LED for effect on/off and battery check Runs on 9 V battery or the BEHRINGER PSU-SB DC power supply (not included)