Effect pedal, Stereo Blender. The SXB-1 is much like a mixing console, equipped with a very transparent buffer amplifier which allows feeding and mixing of effects without signal deterioration. This preserves the integrity and dynamics of the guitar signal. Outfitted with three stereo loops, loops one & two act independently and utilize two separate blend controls for mixing the affected signal with the dry. These loops can be turned on or off. Loop three is a traditional loop that is always <"on<". Can be used with AC adaptor (optional) or 9V Battery.